Fannie Mae and Freddie Mac each emerged from the third quarter of 2012 with a healthy profit, reporting a combined $4.74 billion in net income, a 41.7 percent decline from the second quarter but still well enough into the black to forgo taxpayer assistance to stay solvent. Fannie’s third quarter net income of $1.81 billion compared to a net loss of $5.1 billion in the same quarter a year ago but much more in line with the $2.72 billion it earned during the first quarter of 2012.