Finding the Third Proportional to 16,830 and 25,911

Step by Step Solution

1. Step 1: Write the proportion equation
   16,830 : 25,911 = 25,911 : x
2. Step 2: Convert to fraction form
   16,830/25,911 = 25,911/x
3. Step 3: Cross multiply
   16,830x = 25,911 × 25,911
4. Step 4: Simplify right side
   16,830x = 671,379,921
5. Step 5: Solve for x
   x = 671,379,921/16,830
6. Step 6: Final answer
   x = 39,891.86