Finding the Third Proportional to 3,108 and 3,535.50

Step by Step Solution

1. Step 1: Write the proportion equation
   3,108 : 3,535.50 = 3,535.50 : x
2. Step 2: Convert to fraction form
   3,108/3,535.50 = 3,535.50/x
3. Step 3: Cross multiply
   3,108x = 3,535.50 × 3,535.50
4. Step 4: Simplify right side
   3,108x = 12,499,760.25
5. Step 5: Solve for x
   x = 12,499,760.25/3,108
6. Step 6: Final answer
   x = 4,021.80