Finding the Third Proportional to 62,980,900,611.61 and 138,799,314,928.63

Step by Step Solution

1. Step 1: Write the proportion equation
   62,980,900,611.61 : 138,799,314,928.63 = 138,799,314,928.63 : x
2. Step 2: Convert to fraction form
   62,980,900,611.61/138,799,314,928.63 = 138,799,314,928.63/x
3. Step 3: Cross multiply
   62,980,900,611.61x = 138,799,314,928.63 × 138,799,314,928.63
4. Step 4: Simplify right side
   62,980,900,611.61x = 19,265,249,824,657,012,424,704
5. Step 5: Solve for x
   x = 19,265,249,824,657,012,424,704/62,980,900,611.61
6. Step 6: Final answer
   x = 305,890,351,480.71