Finding the Third Proportional to 16,458 and 25,530

Step by Step Solution

1. Step 1: Write the proportion equation
   16,458 : 25,530 = 25,530 : x
2. Step 2: Convert to fraction form
   16,458/25,530 = 25,530/x
3. Step 3: Cross multiply
   16,458x = 25,530 × 25,530
4. Step 4: Simplify right side
   16,458x = 651,780,900
5. Step 5: Solve for x
   x = 651,780,900/16,458
6. Step 6: Final answer
   x = 39,602.68