outer division by exsymmedian and inner division by symmedian va the same ratio
<span class="mwe-math-element"><span class="mwe-math-mathml-inline mwe-math-mathml-a11y" style="display: none;"><math xmlns="http://www.w3.org/1998/Math/MathML" alttext="{\displaystyle {\frac {{!}BT_{2}{!}}{{!}AT_{2}{!}}}={\frac {{!}BT_{1}{!}}{{!}AT_{1}{!}}}={\frac {a^{2}}{b^{2}}}}"><semantics><mrow class="MJX-TeXAtom-ORD"><mstyle displaystyle="true" scriptlevel="0"><mrow class="MJX-TeXAtom-ORD"><mfrac><mrow><mrow class="MJX-TeXAtom-ORD"><mo>!</mo></mrow><mi>B</mi><msub><mi>T</mi><mrow class="MJX-TeXAtom-ORD"><mn>2</mn></mrow></msub><mrow class="MJX-TeXAtom-ORD"><mo>!</mo></mrow></mrow><mrow><mrow class="MJX-TeXAtom-ORD"><mo>!</mo></mrow><mi>A</mi><msub><mi>T</mi><mrow class="MJX-TeXAtom-ORD"><mn>2</mn></mrow></msub><mrow class="MJX-TeXAtom-ORD"><mo>!</mo></mrow></mrow></mfrac></mrow><mo>=</mo><mrow class="MJX-TeXAtom-ORD"><mfrac><mrow><mrow class="MJX-TeXAtom-ORD"><mo>!</mo></mrow><mi>B</mi><msub><mi>T</mi><mrow class="MJX-TeXAtom-ORD"><mn>1</mn></mrow></msub><mrow class="MJX-TeXAtom-ORD"><mo>!</mo></mrow></mrow><mrow><mrow class="MJX-TeXAtom-ORD"><mo>!</mo></mrow><mi>A</mi><msub><mi>T</mi><mrow class="MJX-TeXAtom-ORD"><mn>1</mn></mrow></msub><mrow class="MJX-TeXAtom-ORD"><mo>!</mo></mrow></mrow></mfrac></mrow><mo>=</mo><mrow class="MJX-TeXAtom-ORD"><mfrac><msup><mi>a</mi><mrow class="MJX-TeXAtom-ORD"><mn>2</mn></mrow></msup><msup><mi>b</mi><mrow class="MJX-TeXAtom-ORD"><mn>2</mn></mrow></msup></mfrac></mrow></mstyle></mrow><annotation encoding="application/x-tex">{\displaystyle {\frac {{!}BT_{2}{!}}{{!}AT_{2}{!}}}={\frac {{!}BT_{1}{!}}{{!}AT_{1}{!}}}={\frac {a^{2}}{b^{2}}}}</annotation></semantics></math></span><img src="https://wikimedia.org/api/rest_v1/media/math/render/svg/cea7d46a48e012861f79b38c4fd9e0f33efdf29b" class="mwe-math-fallback-image-inline" aria-hidden="true" style="vertical-align: -2.338ex; width:21.928ex; height:6.176ex;" alt="{\displaystyle {\frac {{!}BT_{2}{!}}{{!}AT_{2}{!}}}={\frac {{!}BT_{1}{!}}{{!}AT_{1}{!}}}={\frac {a^{2}}{b^{2}}}}"></span>
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