Finding the Third Proportional to 252,407,664 and 387,729,076.50

Step by Step Solution

1. Step 1: Write the proportion equation
   252,407,664 : 387,729,076.50 = 387,729,076.50 : x
2. Step 2: Convert to fraction form
   252,407,664/387,729,076.50 = 387,729,076.50/x
3. Step 3: Cross multiply
   252,407,664x = 387,729,076.50 × 387,729,076.50
4. Step 4: Simplify right side
   252,407,664x = 150,333,836,763,542,848
5. Step 5: Solve for x
   x = 150,333,836,763,542,848/252,407,664
6. Step 6: Final answer
   x = 595,599,334.75