Finding the Third Proportional to 2,391.75 and 2,713.50

Step by Step Solution

1. Step 1: Write the proportion equation
   2,391.75 : 2,713.50 = 2,713.50 : x
2. Step 2: Convert to fraction form
   2,391.75/2,713.50 = 2,713.50/x
3. Step 3: Cross multiply
   2,391.75x = 2,713.50 × 2,713.50
4. Step 4: Simplify right side
   2,391.75x = 7,363,082.25
5. Step 5: Solve for x
   x = 7,363,082.25/2,391.75
6. Step 6: Final answer
   x = 3,078.53