Finding the Third Proportional to 185,105.25 and 396,454.50

Step by Step Solution

1. Step 1: Write the proportion equation
   185,105.25 : 396,454.50 = 396,454.50 : x
2. Step 2: Convert to fraction form
   185,105.25/396,454.50 = 396,454.50/x
3. Step 3: Cross multiply
   185,105.25x = 396,454.50 × 396,454.50
4. Step 4: Simplify right side
   185,105.25x = 157,176,170,570.25
5. Step 5: Solve for x
   x = 157,176,170,570.25/185,105.25
6. Step 6: Final answer
   x = 849,117.84