Finding the Third Proportional to 2,557 and 5,756

Step by Step Solution

1. Step 1: Write the proportion equation
   2,557 : 5,756 = 5,756 : x
2. Step 2: Convert to fraction form
   2,557/5,756 = 5,756/x
3. Step 3: Cross multiply
   2,557x = 5,756 × 5,756
4. Step 4: Simplify right side
   2,557x = 33,131,536
5. Step 5: Solve for x
   x = 33,131,536/2,557
6. Step 6: Final answer
   x = 12,957.19