Finding the Third Proportional to 2,568.38 and 5,280.19

Step by Step Solution

1. Step 1: Write the proportion equation
   2,568.38 : 5,280.19 = 5,280.19 : x
2. Step 2: Convert to fraction form
   2,568.38/5,280.19 = 5,280.19/x
3. Step 3: Cross multiply
   2,568.38x = 5,280.19 × 5,280.19
4. Step 4: Simplify right side
   2,568.38x = 27,880,380.04
5. Step 5: Solve for x
   x = 27,880,380.04/2,568.38
6. Step 6: Final answer
   x = 10,855.26