Finding the Third Proportional to 16,642 and 25,659

Step by Step Solution

1. Step 1: Write the proportion equation
   16,642 : 25,659 = 25,659 : x
2. Step 2: Convert to fraction form
   16,642/25,659 = 25,659/x
3. Step 3: Cross multiply
   16,642x = 25,659 × 25,659
4. Step 4: Simplify right side
   16,642x = 658,384,281
5. Step 5: Solve for x
   x = 658,384,281/16,642
6. Step 6: Final answer
   x = 39,561.61