Finding the Third Proportional to 181,558 and 398,946.50

Step by Step Solution

1. Step 1: Write the proportion equation
   181,558 : 398,946.50 = 398,946.50 : x
2. Step 2: Convert to fraction form
   181,558/398,946.50 = 398,946.50/x
3. Step 3: Cross multiply
   181,558x = 398,946.50 × 398,946.50
4. Step 4: Simplify right side
   181,558x = 159,158,309,862.25
5. Step 5: Solve for x
   x = 159,158,309,862.25/181,558
6. Step 6: Final answer
   x = 876,625.15