Finding the Third Proportional to 78,986.25 and 173,983.50

Step by Step Solution

1. Step 1: Write the proportion equation
   78,986.25 : 173,983.50 = 173,983.50 : x
2. Step 2: Convert to fraction form
   78,986.25/173,983.50 = 173,983.50/x
3. Step 3: Cross multiply
   78,986.25x = 173,983.50 × 173,983.50
4. Step 4: Simplify right side
   78,986.25x = 30,270,258,272.25
5. Step 5: Solve for x
   x = 30,270,258,272.25/78,986.25
6. Step 6: Final answer
   x = 383,234.53