Finding the Third Proportional to 16,659 and 25,785

Step by Step Solution

1. Step 1: Write the proportion equation
   16,659 : 25,785 = 25,785 : x
2. Step 2: Convert to fraction form
   16,659/25,785 = 25,785/x
3. Step 3: Cross multiply
   16,659x = 25,785 × 25,785
4. Step 4: Simplify right side
   16,659x = 664,866,225
5. Step 5: Solve for x
   x = 664,866,225/16,659
6. Step 6: Final answer
   x = 39,910.33