Finding the Third Proportional to 42,568,468 and 64,915,542

Step by Step Solution

1. Step 1: Write the proportion equation
   42,568,468 : 64,915,542 = 64,915,542 : x
2. Step 2: Convert to fraction form
   42,568,468/64,915,542 = 64,915,542/x
3. Step 3: Cross multiply
   42,568,468x = 64,915,542 × 64,915,542
4. Step 4: Simplify right side
   42,568,468x = 4,214,027,593,153,764
5. Step 5: Solve for x
   x = 4,214,027,593,153,764/42,568,468
6. Step 6: Final answer
   x = 98,994,109.75