CREATE TABLE table_52445 ("Year" FLOAT, "Network" CLOB, "Lap-by-lap" CLOB, "Color commentator ( s ) " CLOB, "Pit reporters" CLOB, "Host" CLOB, "Ratings" CLOB, "Viewers" CLOB)

What were the ratings for host Chris Economaki who had 12.3 million viewers?
SELECT "Ratings" FROM table_52445 WHERE "Host" = 'chris economaki' AND "Viewers" = '12.3 million'
SELECT "Ratings" FROM "table_52445" WHERE "Host" = 'chris economaki' AND "Viewers" = '12.3 million'