Finding the Third Proportional to 29,915,709 and 64,300,414.50

Step by Step Solution

1. Step 1: Write the proportion equation
   29,915,709 : 64,300,414.50 = 64,300,414.50 : x
2. Step 2: Convert to fraction form
   29,915,709/64,300,414.50 = 64,300,414.50/x
3. Step 3: Cross multiply
   29,915,709x = 64,300,414.50 × 64,300,414.50
4. Step 4: Simplify right side
   29,915,709x = 4,134,543,304,871,810
5. Step 5: Solve for x
   x = 4,134,543,304,871,810/29,915,709
6. Step 6: Final answer
   x = 138,206,428.77