Finding the Third Proportional to 3,910 and 5,560

Step by Step Solution

1. Step 1: Write the proportion equation
   3,910 : 5,560 = 5,560 : x
2. Step 2: Convert to fraction form
   3,910/5,560 = 5,560/x
3. Step 3: Cross multiply
   3,910x = 5,560 × 5,560
4. Step 4: Simplify right side
   3,910x = 30,913,600
5. Step 5: Solve for x
   x = 30,913,600/3,910
6. Step 6: Final answer
   x = 7,906.29