Finding the Third Proportional to 29,789,540 and 64,887,432

Step by Step Solution

1. Step 1: Write the proportion equation
   29,789,540 : 64,887,432 = 64,887,432 : x
2. Step 2: Convert to fraction form
   29,789,540/64,887,432 = 64,887,432/x
3. Step 3: Cross multiply
   29,789,540x = 64,887,432 × 64,887,432
4. Step 4: Simplify right side
   29,789,540x = 4,210,378,831,554,624
5. Step 5: Solve for x
   x = 4,210,378,831,554,624/29,789,540
6. Step 6: Final answer
   x = 141,337,490.66