Finding the Third Proportional to 181,030.50 and 279,540

Step by Step Solution

1. Step 1: Write the proportion equation
   181,030.50 : 279,540 = 279,540 : x
2. Step 2: Convert to fraction form
   181,030.50/279,540 = 279,540/x
3. Step 3: Cross multiply
   181,030.50x = 279,540 × 279,540
4. Step 4: Simplify right side
   181,030.50x = 78,142,611,600
5. Step 5: Solve for x
   x = 78,142,611,600/181,030.50
6. Step 6: Final answer
   x = 431,654.40