Finding the Third Proportional to 12,189,551 and 25,387,998

Step by Step Solution

1. Step 1: Write the proportion equation
   12,189,551 : 25,387,998 = 25,387,998 : x
2. Step 2: Convert to fraction form
   12,189,551/25,387,998 = 25,387,998/x
3. Step 3: Cross multiply
   12,189,551x = 25,387,998 × 25,387,998
4. Step 4: Simplify right side
   12,189,551x = 644,550,442,448,004
5. Step 5: Solve for x
   x = 644,550,442,448,004/12,189,551
6. Step 6: Final answer
   x = 52,877,291.58