Finding the Third Proportional to 16,689.38 and 25,770

Step by Step Solution

1. Step 1: Write the proportion equation
   16,689.38 : 25,770 = 25,770 : x
2. Step 2: Convert to fraction form
   16,689.38/25,770 = 25,770/x
3. Step 3: Cross multiply
   16,689.38x = 25,770 × 25,770
4. Step 4: Simplify right side
   16,689.38x = 664,092,900
5. Step 5: Solve for x
   x = 664,092,900/16,689.38
6. Step 6: Final answer
   x = 39,791.36