Finding the Third Proportional to 115,413.75 and 173,880

Step by Step Solution

1. Step 1: Write the proportion equation
   115,413.75 : 173,880 = 173,880 : x
2. Step 2: Convert to fraction form
   115,413.75/173,880 = 173,880/x
3. Step 3: Cross multiply
   115,413.75x = 173,880 × 173,880
4. Step 4: Simplify right side
   115,413.75x = 30,234,254,400
5. Step 5: Solve for x
   x = 30,234,254,400/115,413.75
6. Step 6: Final answer
   x = 261,964.06