Finding the Third Proportional to 20,990 and 32,761.50

Step by Step Solution

1. Step 1: Write the proportion equation
   20,990 : 32,761.50 = 32,761.50 : x
2. Step 2: Convert to fraction form
   20,990/32,761.50 = 32,761.50/x
3. Step 3: Cross multiply
   20,990x = 32,761.50 × 32,761.50
4. Step 4: Simplify right side
   20,990x = 1,073,315,882.25
5. Step 5: Solve for x
   x = 1,073,315,882.25/20,990
6. Step 6: Final answer
   x = 51,134.63