Finding the Third Proportional to 12,701.25 and 20,490.75

Step by Step Solution

1. Step 1: Write the proportion equation
   12,701.25 : 20,490.75 = 20,490.75 : x
2. Step 2: Convert to fraction form
   12,701.25/20,490.75 = 20,490.75/x
3. Step 3: Cross multiply
   12,701.25x = 20,490.75 × 20,490.75
4. Step 4: Simplify right side
   12,701.25x = 419,870,835.56
5. Step 5: Solve for x
   x = 419,870,835.56/12,701.25
6. Step 6: Final answer
   x = 33,057.44