Finding the Third Proportional to 185,254.50 and 398,598

Step by Step Solution

1. Step 1: Write the proportion equation
   185,254.50 : 398,598 = 398,598 : x
2. Step 2: Convert to fraction form
   185,254.50/398,598 = 398,598/x
3. Step 3: Cross multiply
   185,254.50x = 398,598 × 398,598
4. Step 4: Simplify right side
   185,254.50x = 158,880,365,604
5. Step 5: Solve for x
   x = 158,880,365,604/185,254.50
6. Step 6: Final answer
   x = 857,632.96