Finding the Third Proportional to 39,771 and 56,200.50

Step by Step Solution

1. Step 1: Write the proportion equation
   39,771 : 56,200.50 = 56,200.50 : x
2. Step 2: Convert to fraction form
   39,771/56,200.50 = 56,200.50/x
3. Step 3: Cross multiply
   39,771x = 56,200.50 × 56,200.50
4. Step 4: Simplify right side
   39,771x = 3,158,496,200.25
5. Step 5: Solve for x
   x = 3,158,496,200.25/39,771
6. Step 6: Final answer
   x = 79,417.07