Finding the Third Proportional to 177,442.31 and 387,002.25

Step by Step Solution

1. Step 1: Write the proportion equation
   177,442.31 : 387,002.25 = 387,002.25 : x
2. Step 2: Convert to fraction form
   177,442.31/387,002.25 = 387,002.25/x
3. Step 3: Cross multiply
   177,442.31x = 387,002.25 × 387,002.25
4. Step 4: Simplify right side
   177,442.31x = 149,770,741,505.06
5. Step 5: Solve for x
   x = 149,770,741,505.06/177,442.31
6. Step 6: Final answer
   x = 844,053.14