Finding the Third Proportional to 624,499,470 and 1,388,589,952.50

Step by Step Solution

1. Step 1: Write the proportion equation
   624,499,470 : 1,388,589,952.50 = 1,388,589,952.50 : x
2. Step 2: Convert to fraction form
   624,499,470/1,388,589,952.50 = 1,388,589,952.50/x
3. Step 3: Cross multiply
   624,499,470x = 1,388,589,952.50 × 1,388,589,952.50
4. Step 4: Simplify right side
   624,499,470x = 1,928,182,056,183,952,384
5. Step 5: Solve for x
   x = 1,928,182,056,183,952,384/624,499,470
6. Step 6: Final answer
   x = 3,087,563,959.32