Finding the Third Proportional to 3,408.75 and 4,580.72

Step by Step Solution

1. Step 1: Write the proportion equation
   3,408.75 : 4,580.72 = 4,580.72 : x
2. Step 2: Convert to fraction form
   3,408.75/4,580.72 = 4,580.72/x
3. Step 3: Cross multiply
   3,408.75x = 4,580.72 × 4,580.72
4. Step 4: Simplify right side
   3,408.75x = 20,982,984.27
5. Step 5: Solve for x
   x = 20,982,984.27/3,408.75
6. Step 6: Final answer
   x = 6,155.62