Finding the Third Proportional to 116,615,642.50 and 269,972,355.50

Step by Step Solution

1. Step 1: Write the proportion equation
   116,615,642.50 : 269,972,355.50 = 269,972,355.50 : x
2. Step 2: Convert to fraction form
   116,615,642.50/269,972,355.50 = 269,972,355.50/x
3. Step 3: Cross multiply
   116,615,642.50x = 269,972,355.50 × 269,972,355.50
4. Step 4: Simplify right side
   116,615,642.50x = 72,885,072,734,218,384
5. Step 5: Solve for x
   x = 72,885,072,734,218,384/116,615,642.50
6. Step 6: Final answer
   x = 625,002,539.73