Finding the Third Proportional to 29,344,640 and 64,357,978

Step by Step Solution

1. Step 1: Write the proportion equation
   29,344,640 : 64,357,978 = 64,357,978 : x
2. Step 2: Convert to fraction form
   29,344,640/64,357,978 = 64,357,978/x
3. Step 3: Cross multiply
   29,344,640x = 64,357,978 × 64,357,978
4. Step 4: Simplify right side
   29,344,640x = 4,141,949,332,248,484
5. Step 5: Solve for x
   x = 4,141,949,332,248,484/29,344,640
6. Step 6: Final answer
   x = 141,148,411.85