Finding the Third Proportional to 16,689.38 and 36,294.75

Step by Step Solution

1. Step 1: Write the proportion equation
   16,689.38 : 36,294.75 = 36,294.75 : x
2. Step 2: Convert to fraction form
   16,689.38/36,294.75 = 36,294.75/x
3. Step 3: Cross multiply
   16,689.38x = 36,294.75 × 36,294.75
4. Step 4: Simplify right side
   16,689.38x = 1,317,308,877.56
5. Step 5: Solve for x
   x = 1,317,308,877.56/16,689.38
6. Step 6: Final answer
   x = 78,930.99