Finding the Third Proportional to 2,628 and 5,557

Step by Step Solution

1. Step 1: Write the proportion equation
   2,628 : 5,557 = 5,557 : x
2. Step 2: Convert to fraction form
   2,628/5,557 = 5,557/x
3. Step 3: Cross multiply
   2,628x = 5,557 × 5,557
4. Step 4: Simplify right side
   2,628x = 30,880,249
5. Step 5: Solve for x
   x = 30,880,249/2,628
6. Step 6: Final answer
   x = 11,750.48