Finding the Third Proportional to 78,882.75 and 173,074.50

Step by Step Solution

1. Step 1: Write the proportion equation
   78,882.75 : 173,074.50 = 173,074.50 : x
2. Step 2: Convert to fraction form
   78,882.75/173,074.50 = 173,074.50/x
3. Step 3: Cross multiply
   78,882.75x = 173,074.50 × 173,074.50
4. Step 4: Simplify right side
   78,882.75x = 29,954,782,550.25
5. Step 5: Solve for x
   x = 29,954,782,550.25/78,882.75
6. Step 6: Final answer
   x = 379,738.06