Finding the Third Proportional to 2,789 and 4,320.88

Step by Step Solution

1. Step 1: Write the proportion equation
   2,789 : 4,320.88 = 4,320.88 : x
2. Step 2: Convert to fraction form
   2,789/4,320.88 = 4,320.88/x
3. Step 3: Cross multiply
   2,789x = 4,320.88 × 4,320.88
4. Step 4: Simplify right side
   2,789x = 18,669,960.77
5. Step 5: Solve for x
   x = 18,669,960.77/2,789
6. Step 6: Final answer
   x = 6,694.14