Finding the Third Proportional to 2,210 and 3,128

Step by Step Solution

1. Step 1: Write the proportion equation
   2,210 : 3,128 = 3,128 : x
2. Step 2: Convert to fraction form
   2,210/3,128 = 3,128/x
3. Step 3: Cross multiply
   2,210x = 3,128 × 3,128
4. Step 4: Simplify right side
   2,210x = 9,784,384
5. Step 5: Solve for x
   x = 9,784,384/2,210
6. Step 6: Final answer
   x = 4,427.32