Finding the Third Proportional to 12,189,528 and 25,387,951.50

Step by Step Solution

1. Step 1: Write the proportion equation
   12,189,528 : 25,387,951.50 = 25,387,951.50 : x
2. Step 2: Convert to fraction form
   12,189,528/25,387,951.50 = 25,387,951.50/x
3. Step 3: Cross multiply
   12,189,528x = 25,387,951.50 × 25,387,951.50
4. Step 4: Simplify right side
   12,189,528x = 644,548,081,366,352.25
5. Step 5: Solve for x
   x = 644,548,081,366,352.25/12,189,528
6. Step 6: Final answer
   x = 52,877,197.65