Finding the Third Proportional to 20,499.75 and 31,330.13

Step by Step Solution

1. Step 1: Write the proportion equation
   20,499.75 : 31,330.13 = 31,330.13 : x
2. Step 2: Convert to fraction form
   20,499.75/31,330.13 = 31,330.13/x
3. Step 3: Cross multiply
   20,499.75x = 31,330.13 × 31,330.13
4. Step 4: Simplify right side
   20,499.75x = 981,576,732.52
5. Step 5: Solve for x
   x = 981,576,732.52/20,499.75
6. Step 6: Final answer
   x = 47,882.38