Finding the Third Proportional to 2,646.50 and 3,480

Step by Step Solution

1. Step 1: Write the proportion equation
   2,646.50 : 3,480 = 3,480 : x
2. Step 2: Convert to fraction form
   2,646.50/3,480 = 3,480/x
3. Step 3: Cross multiply
   2,646.50x = 3,480 × 3,480
4. Step 4: Simplify right side
   2,646.50x = 12,110,400
5. Step 5: Solve for x
   x = 12,110,400/2,646.50
6. Step 6: Final answer
   x = 4,576.01