CREATE TABLE table_27491610_2 (no_in_season VARCHAR2, us_viewers__millions_ VARCHAR2)

What number in season had 10.18 million US viewers?
SELECT no_in_season FROM table_27491610_2 WHERE us_viewers__millions_ = "10.18"
SELECT "no_in_season" FROM "table_27491610_2" WHERE "10.18" = "us_viewers__millions_"