Finding the Third Proportional to 108,978,624 and 168,755,616

Step by Step Solution

1. Step 1: Write the proportion equation
   108,978,624 : 168,755,616 = 168,755,616 : x
2. Step 2: Convert to fraction form
   108,978,624/168,755,616 = 168,755,616/x
3. Step 3: Cross multiply
   108,978,624x = 168,755,616 × 168,755,616
4. Step 4: Simplify right side
   108,978,624x = 28,478,457,931,539,456
5. Step 5: Solve for x
   x = 28,478,457,931,539,456/108,978,624
6. Step 6: Final answer
   x = 261,321,504.04