Finding the Third Proportional to 3,120 and 5,562

Step by Step Solution

1. Step 1: Write the proportion equation
   3,120 : 5,562 = 5,562 : x
2. Step 2: Convert to fraction form
   3,120/5,562 = 5,562/x
3. Step 3: Cross multiply
   3,120x = 5,562 × 5,562
4. Step 4: Simplify right side
   3,120x = 30,935,844
5. Step 5: Solve for x
   x = 30,935,844/3,120
6. Step 6: Final answer
   x = 9,915.33