Finding the Third Proportional to 181,766.50 and 386,861

Step by Step Solution

1. Step 1: Write the proportion equation
   181,766.50 : 386,861 = 386,861 : x
2. Step 2: Convert to fraction form
   181,766.50/386,861 = 386,861/x
3. Step 3: Cross multiply
   181,766.50x = 386,861 × 386,861
4. Step 4: Simplify right side
   181,766.50x = 149,661,433,321
5. Step 5: Solve for x
   x = 149,661,433,321/181,766.50
6. Step 6: Final answer
   x = 823,371.93