Finding the Third Proportional to 177,472.50 and 387,696

Step by Step Solution

1. Step 1: Write the proportion equation
   177,472.50 : 387,696 = 387,696 : x
2. Step 2: Convert to fraction form
   177,472.50/387,696 = 387,696/x
3. Step 3: Cross multiply
   177,472.50x = 387,696 × 387,696
4. Step 4: Simplify right side
   177,472.50x = 150,308,188,416
5. Step 5: Solve for x
   x = 150,308,188,416/177,472.50
6. Step 6: Final answer
   x = 846,937.91