Finding the Third Proportional to 3,280.50 and 3,969

Step by Step Solution

1. Step 1: Write the proportion equation
   3,280.50 : 3,969 = 3,969 : x
2. Step 2: Convert to fraction form
   3,280.50/3,969 = 3,969/x
3. Step 3: Cross multiply
   3,280.50x = 3,969 × 3,969
4. Step 4: Simplify right side
   3,280.50x = 15,752,961
5. Step 5: Solve for x
   x = 15,752,961/3,280.50
6. Step 6: Final answer
   x = 4,802