Finding the Third Proportional to 16,128.75 and 25,345.13

Step by Step Solution

1. Step 1: Write the proportion equation
   16,128.75 : 25,345.13 = 25,345.13 : x
2. Step 2: Convert to fraction form
   16,128.75/25,345.13 = 25,345.13/x
3. Step 3: Cross multiply
   16,128.75x = 25,345.13 × 25,345.13
4. Step 4: Simplify right side
   16,128.75x = 642,375,361.27
5. Step 5: Solve for x
   x = 642,375,361.27/16,128.75
6. Step 6: Final answer
   x = 39,827.97