Finding the Third Proportional to 28,879.03 and 71,221.78

Step by Step Solution

1. Step 1: Write the proportion equation
   28,879.03 : 71,221.78 = 71,221.78 : x
2. Step 2: Convert to fraction form
   28,879.03/71,221.78 = 71,221.78/x
3. Step 3: Cross multiply
   28,879.03x = 71,221.78 × 71,221.78
4. Step 4: Simplify right side
   28,879.03x = 5,072,542,124.42
5. Step 5: Solve for x
   x = 5,072,542,124.42/28,879.03
6. Step 6: Final answer
   x = 175,647.93