Finding the Third Proportional to 12,439,986.75 and 25,873,114.50

Step by Step Solution

1. Step 1: Write the proportion equation
   12,439,986.75 : 25,873,114.50 = 25,873,114.50 : x
2. Step 2: Convert to fraction form
   12,439,986.75/25,873,114.50 = 25,873,114.50/x
3. Step 3: Cross multiply
   12,439,986.75x = 25,873,114.50 × 25,873,114.50
4. Step 4: Simplify right side
   12,439,986.75x = 669,418,053,930,110.25
5. Step 5: Solve for x
   x = 669,418,053,930,110.25/12,439,986.75
6. Step 6: Final answer
   x = 53,811,797.99