Finding the Third Proportional to 187,879.50 and 395,442

Step by Step Solution

1. Step 1: Write the proportion equation
   187,879.50 : 395,442 = 395,442 : x
2. Step 2: Convert to fraction form
   187,879.50/395,442 = 395,442/x
3. Step 3: Cross multiply
   187,879.50x = 395,442 × 395,442
4. Step 4: Simplify right side
   187,879.50x = 156,374,375,364
5. Step 5: Solve for x
   x = 156,374,375,364/187,879.50
6. Step 6: Final answer
   x = 832,312.07