Find the positive value of $x$ for which
\[\sqrt{\cfrac{x}{1 + \sqrt{\cfrac{x}{1 + \sqrt{\cfrac{x}{1 + \cdots}}}}}} = 8.\]
<|im_start|>system
You are a helpful assistant.<|im_end|>
<|im_start|>user
Find the positive value of $x$ for which
\[\sqrt{\cfrac{x}{1 + \sqrt{\cfrac{x}{1 + \sqrt{\cfrac{x}{1 + \cdots}}}}}} = 8.\]
Please reason step by step, and put your final answer within \boxed{{}}.<|im_end|>
<|im_start|>assistant

user
576
Find the positive value of $x$ for which
\[\sqrt{\cfrac{x}{1 + \sqrt{\cfrac{x}{1 + \sqrt{\cfrac{x}{1 + \cdots}}}}}} = 8.\]
train