Finding the Third Proportional to 177,403.50 and 387,585

Step by Step Solution

1. Step 1: Write the proportion equation
   177,403.50 : 387,585 = 387,585 : x
2. Step 2: Convert to fraction form
   177,403.50/387,585 = 387,585/x
3. Step 3: Cross multiply
   177,403.50x = 387,585 × 387,585
4. Step 4: Simplify right side
   177,403.50x = 150,222,132,225
5. Step 5: Solve for x
   x = 150,222,132,225/177,403.50
6. Step 6: Final answer
   x = 846,782.23