Finding the Third Proportional to 2,788.50 and 4,320

Step by Step Solution

1. Step 1: Write the proportion equation
   2,788.50 : 4,320 = 4,320 : x
2. Step 2: Convert to fraction form
   2,788.50/4,320 = 4,320/x
3. Step 3: Cross multiply
   2,788.50x = 4,320 × 4,320
4. Step 4: Simplify right side
   2,788.50x = 18,662,400
5. Step 5: Solve for x
   x = 18,662,400/2,788.50
6. Step 6: Final answer
   x = 6,692.63