Finding the Third Proportional to 16,689.38 and 36,659.25

Step by Step Solution

1. Step 1: Write the proportion equation
   16,689.38 : 36,659.25 = 36,659.25 : x
2. Step 2: Convert to fraction form
   16,689.38/36,659.25 = 36,659.25/x
3. Step 3: Cross multiply
   16,689.38x = 36,659.25 × 36,659.25
4. Step 4: Simplify right side
   16,689.38x = 1,343,900,610.56
5. Step 5: Solve for x
   x = 1,343,900,610.56/16,689.38
6. Step 6: Final answer
   x = 80,524.32