Finding the Third Proportional to 16,658 and 25,683

Step by Step Solution

1. Step 1: Write the proportion equation
   16,658 : 25,683 = 25,683 : x
2. Step 2: Convert to fraction form
   16,658/25,683 = 25,683/x
3. Step 3: Cross multiply
   16,658x = 25,683 × 25,683
4. Step 4: Simplify right side
   16,658x = 659,616,489
5. Step 5: Solve for x
   x = 659,616,489/16,658
6. Step 6: Final answer
   x = 39,597.58