Finding the Third Proportional to 16,663 and 25,791

Step by Step Solution

1. Step 1: Write the proportion equation
   16,663 : 25,791 = 25,791 : x
2. Step 2: Convert to fraction form
   16,663/25,791 = 25,791/x
3. Step 3: Cross multiply
   16,663x = 25,791 × 25,791
4. Step 4: Simplify right side
   16,663x = 665,175,681
5. Step 5: Solve for x
   x = 665,175,681/16,663
6. Step 6: Final answer
   x = 39,919.32