question: Who won 3rd place when the mutya ng pilipinas winner was  was rochelle romero ong?
answer: SELECT 2 AS nd_runner_up FROM table_24430894_20 WHERE mutya_ng_pilipinas_asia_pacific = "Rochelle Romero Ong"
context: CREATE TABLE table_24430894_20 (mutya_ng_pilipinas_asia_pacific VARCHAR)