Finding the Third Proportional to 3,718.50 and 5,559.75

Step by Step Solution

1. Step 1: Write the proportion equation
   3,718.50 : 5,559.75 = 5,559.75 : x
2. Step 2: Convert to fraction form
   3,718.50/5,559.75 = 5,559.75/x
3. Step 3: Cross multiply
   3,718.50x = 5,559.75 × 5,559.75
4. Step 4: Simplify right side
   3,718.50x = 30,910,820.06
5. Step 5: Solve for x
   x = 30,910,820.06/3,718.50
6. Step 6: Final answer
   x = 8,312.71