Finding the Third Proportional to 181,321.50 and 387,591

Step by Step Solution

1. Step 1: Write the proportion equation
   181,321.50 : 387,591 = 387,591 : x
2. Step 2: Convert to fraction form
   181,321.50/387,591 = 387,591/x
3. Step 3: Cross multiply
   181,321.50x = 387,591 × 387,591
4. Step 4: Simplify right side
   181,321.50x = 150,226,783,281
5. Step 5: Solve for x
   x = 150,226,783,281/181,321.50
6. Step 6: Final answer
   x = 828,510.59