Finding the Third Proportional to 2,385.28 and 3,591

Step by Step Solution

1. Step 1: Write the proportion equation
   2,385.28 : 3,591 = 3,591 : x
2. Step 2: Convert to fraction form
   2,385.28/3,591 = 3,591/x
3. Step 3: Cross multiply
   2,385.28x = 3,591 × 3,591
4. Step 4: Simplify right side
   2,385.28x = 12,895,281
5. Step 5: Solve for x
   x = 12,895,281/2,385.28
6. Step 6: Final answer
   x = 5,406.19