Finding the Third Proportional to 16,488 and 25,520

Step by Step Solution

1. Step 1: Write the proportion equation
   16,488 : 25,520 = 25,520 : x
2. Step 2: Convert to fraction form
   16,488/25,520 = 25,520/x
3. Step 3: Cross multiply
   16,488x = 25,520 × 25,520
4. Step 4: Simplify right side
   16,488x = 651,270,400
5. Step 5: Solve for x
   x = 651,270,400/16,488
6. Step 6: Final answer
   x = 39,499.66