Finding the Third Proportional to 12,189,415 and 25,387,736

Step by Step Solution

1. Step 1: Write the proportion equation
   12,189,415 : 25,387,736 = 25,387,736 : x
2. Step 2: Convert to fraction form
   12,189,415/25,387,736 = 25,387,736/x
3. Step 3: Cross multiply
   12,189,415x = 25,387,736 × 25,387,736
4. Step 4: Simplify right side
   12,189,415x = 644,537,139,205,696
5. Step 5: Solve for x
   x = 644,537,139,205,696/12,189,415
6. Step 6: Final answer
   x = 52,876,790.17