Finding the Third Proportional to 10,891.13 and 16,657.31

Step by Step Solution

1. Step 1: Write the proportion equation
   10,891.13 : 16,657.31 = 16,657.31 : x
2. Step 2: Convert to fraction form
   10,891.13/16,657.31 = 16,657.31/x
3. Step 3: Cross multiply
   10,891.13x = 16,657.31 × 16,657.31
4. Step 4: Simplify right side
   10,891.13x = 277,466,059.72
5. Step 5: Solve for x
   x = 277,466,059.72/10,891.13
6. Step 6: Final answer
   x = 25,476.35