Finding the Third Proportional to 2,217.38 and 3,148.88

Step by Step Solution

1. Step 1: Write the proportion equation
   2,217.38 : 3,148.88 = 3,148.88 : x
2. Step 2: Convert to fraction form
   2,217.38/3,148.88 = 3,148.88/x
3. Step 3: Cross multiply
   2,217.38x = 3,148.88 × 3,148.88
4. Step 4: Simplify right side
   2,217.38x = 9,915,413.77
5. Step 5: Solve for x
   x = 9,915,413.77/2,217.38
6. Step 6: Final answer
   x = 4,471.69