Finding the Third Proportional to 11,581.31 and 25,440.75

Step by Step Solution

1. Step 1: Write the proportion equation
   11,581.31 : 25,440.75 = 25,440.75 : x
2. Step 2: Convert to fraction form
   11,581.31/25,440.75 = 25,440.75/x
3. Step 3: Cross multiply
   11,581.31x = 25,440.75 × 25,440.75
4. Step 4: Simplify right side
   11,581.31x = 647,231,760.56
5. Step 5: Solve for x
   x = 647,231,760.56/11,581.31
6. Step 6: Final answer
   x = 55,885.87