Finding the Third Proportional to 12,139,790.25 and 25,401,997.50

Step by Step Solution

1. Step 1: Write the proportion equation
   12,139,790.25 : 25,401,997.50 = 25,401,997.50 : x
2. Step 2: Convert to fraction form
   12,139,790.25/25,401,997.50 = 25,401,997.50/x
3. Step 3: Cross multiply
   12,139,790.25x = 25,401,997.50 × 25,401,997.50
4. Step 4: Simplify right side
   12,139,790.25x = 645,261,476,990,006.25
5. Step 5: Solve for x
   x = 645,261,476,990,006.25/12,139,790.25
6. Step 6: Final answer
   x = 53,152,605.09