Finding the Third Proportional to 4,500.56 and 7,120.69

Step by Step Solution

1. Step 1: Write the proportion equation
   4,500.56 : 7,120.69 = 7,120.69 : x
2. Step 2: Convert to fraction form
   4,500.56/7,120.69 = 7,120.69/x
3. Step 3: Cross multiply
   4,500.56x = 7,120.69 × 7,120.69
4. Step 4: Simplify right side
   4,500.56x = 50,704,190.47
5. Step 5: Solve for x
   x = 50,704,190.47/4,500.56
6. Step 6: Final answer
   x = 11,266.19