Finding the Third Proportional to 12,403.13 and 15,882.75

Step by Step Solution

1. Step 1: Write the proportion equation
   12,403.13 : 15,882.75 = 15,882.75 : x
2. Step 2: Convert to fraction form
   12,403.13/15,882.75 = 15,882.75/x
3. Step 3: Cross multiply
   12,403.13x = 15,882.75 × 15,882.75
4. Step 4: Simplify right side
   12,403.13x = 252,261,747.56
5. Step 5: Solve for x
   x = 252,261,747.56/12,403.13
6. Step 6: Final answer
   x = 20,338.56