Finding the Third Proportional to 81,391.50 and 177,483

Step by Step Solution

1. Step 1: Write the proportion equation
   81,391.50 : 177,483 = 177,483 : x
2. Step 2: Convert to fraction form
   81,391.50/177,483 = 177,483/x
3. Step 3: Cross multiply
   81,391.50x = 177,483 × 177,483
4. Step 4: Simplify right side
   81,391.50x = 31,500,215,289
5. Step 5: Solve for x
   x = 31,500,215,289/81,391.50
6. Step 6: Final answer
   x = 387,020.95