Finding the Third Proportional to 20,571.47 and 28,909.41

Step by Step Solution

1. Step 1: Write the proportion equation
   20,571.47 : 28,909.41 = 28,909.41 : x
2. Step 2: Convert to fraction form
   20,571.47/28,909.41 = 28,909.41/x
3. Step 3: Cross multiply
   20,571.47x = 28,909.41 × 28,909.41
4. Step 4: Simplify right side
   20,571.47x = 835,753,769.73
5. Step 5: Solve for x
   x = 835,753,769.73/20,571.47
6. Step 6: Final answer
   x = 40,626.84