Finding the Third Proportional to 3,690.56 and 5,525.72

Step by Step Solution

1. Step 1: Write the proportion equation
   3,690.56 : 5,525.72 = 5,525.72 : x
2. Step 2: Convert to fraction form
   3,690.56/5,525.72 = 5,525.72/x
3. Step 3: Cross multiply
   3,690.56x = 5,525.72 × 5,525.72
4. Step 4: Simplify right side
   3,690.56x = 30,533,567.70
5. Step 5: Solve for x
   x = 30,533,567.70/3,690.56
6. Step 6: Final answer
   x = 8,273.42