Finding the Third Proportional to 2,520.18 and 3,789.28

Step by Step Solution

1. Step 1: Write the proportion equation
   2,520.18 : 3,789.28 = 3,789.28 : x
2. Step 2: Convert to fraction form
   2,520.18/3,789.28 = 3,789.28/x
3. Step 3: Cross multiply
   2,520.18x = 3,789.28 × 3,789.28
4. Step 4: Simplify right side
   2,520.18x = 14,358,652.39
5. Step 5: Solve for x
   x = 14,358,652.39/2,520.18
6. Step 6: Final answer
   x = 5,697.48