Verified answer

999.999.999:

Nine hundred ninety nine millions, nine hundred ninety nine thousand, nine hundred ninety nine.

250.315:

Two hundred fifty thousand three and three hundred fifteen.

999,999,999:Nine houndrets, ninety nine millions, nine houndrets, ninety nine thousand, nine houndred ninety nine................250,315:two thousand, three houndred fifteen

NINE NINE NINE NINE NINE NINE NINE NINE NINE

Y EL SEGUNDO ES

FIFTEEN THOUSAND THREE HUNDRED FIFTY