CREATE TABLE table_27319183_7 (total_itv_viewers__millions_ VARCHAR2, official_itv_rating__millions_ VARCHAR2)

How many total itv viewers were there for the episode with official itv ratings of 10.24 million?
SELECT total_itv_viewers__millions_ FROM table_27319183_7 WHERE official_itv_rating__millions_ = "10.24"
SELECT "total_itv_viewers__millions_" FROM "table_27319183_7" WHERE "10.24" = "official_itv_rating__millions_"