Finding the Third Proportional to 2,200 and 3,288.50

Step by Step Solution

1. Step 1: Write the proportion equation
   2,200 : 3,288.50 = 3,288.50 : x
2. Step 2: Convert to fraction form
   2,200/3,288.50 = 3,288.50/x
3. Step 3: Cross multiply
   2,200x = 3,288.50 × 3,288.50
4. Step 4: Simplify right side
   2,200x = 10,814,232.25
5. Step 5: Solve for x
   x = 10,814,232.25/2,200
6. Step 6: Final answer
   x = 4,915.56