Finding the Third Proportional to 2,879.50 and 4,380

Step by Step Solution

1. Step 1: Write the proportion equation
   2,879.50 : 4,380 = 4,380 : x
2. Step 2: Convert to fraction form
   2,879.50/4,380 = 4,380/x
3. Step 3: Cross multiply
   2,879.50x = 4,380 × 4,380
4. Step 4: Simplify right side
   2,879.50x = 19,184,400
5. Step 5: Solve for x
   x = 19,184,400/2,879.50
6. Step 6: Final answer
   x = 6,662.41