Finding the Third Proportional to 177,452.50 and 387,019

Step by Step Solution

1. Step 1: Write the proportion equation
   177,452.50 : 387,019 = 387,019 : x
2. Step 2: Convert to fraction form
   177,452.50/387,019 = 387,019/x
3. Step 3: Cross multiply
   177,452.50x = 387,019 × 387,019
4. Step 4: Simplify right side
   177,452.50x = 149,783,706,361
5. Step 5: Solve for x
   x = 149,783,706,361/177,452.50
6. Step 6: Final answer
   x = 844,077.75