Finding the Third Proportional to 181,030.50 and 386,100

Step by Step Solution

1. Step 1: Write the proportion equation
   181,030.50 : 386,100 = 386,100 : x
2. Step 2: Convert to fraction form
   181,030.50/386,100 = 386,100/x
3. Step 3: Cross multiply
   181,030.50x = 386,100 × 386,100
4. Step 4: Simplify right side
   181,030.50x = 149,073,210,000
5. Step 5: Solve for x
   x = 149,073,210,000/181,030.50
6. Step 6: Final answer
   x = 823,470.13