Finding the Third Proportional to 12,868.88 and 20,550.38

Step by Step Solution

1. Step 1: Write the proportion equation
   12,868.88 : 20,550.38 = 20,550.38 : x
2. Step 2: Convert to fraction form
   12,868.88/20,550.38 = 20,550.38/x
3. Step 3: Cross multiply
   12,868.88x = 20,550.38 × 20,550.38
4. Step 4: Simplify right side
   12,868.88x = 422,317,912.64
5. Step 5: Solve for x
   x = 422,317,912.64/12,868.88
6. Step 6: Final answer
   x = 32,817.00