Below is the list of tables from the database along with their columns and datatype. Need to generate an accurate SQL query for the question.
Only use the columns present in the respective table. Only use the columns which are required to generate the SQL query. Only use table joins if required and not otherwise.

### Tables ###
TABLE: CREATE TABLE table_24392 ( "City & Nation" text, "First Place" real, "Second Place" real, "Third Place" real, "Total Top 3 Placements" real, "First Place Winning Year(s) (if applicable)" text )

### Question ###
What is the largest third place finish when first place winning year(s) (if applicable) was n/a?

### Accurate SQL ###

SELECT MAX("Third Place") FROM table_24392 WHERE "First Place Winning Year(s) (if applicable)" = 'N/A'