Question: What are the profits (in billions) of the company with a market value of 172.9 billion?
Schema: create table table_1682026_3 (profits__billion_$_ varchar, market_value__billion_$_ varchar, PRIMARY KEY (profits__billion_$_))
SQL: select profits__billion_$_ from table_1682026_3 where market_value__billion_$_ = "172.9"