Finding the Third Proportional to 2,628 and 5,559

Step by Step Solution

1. Step 1: Write the proportion equation
   2,628 : 5,559 = 5,559 : x
2. Step 2: Convert to fraction form
   2,628/5,559 = 5,559/x
3. Step 3: Cross multiply
   2,628x = 5,559 × 5,559
4. Step 4: Simplify right side
   2,628x = 30,902,481
5. Step 5: Solve for x
   x = 30,902,481/2,628
6. Step 6: Final answer
   x = 11,758.93