Finding the Third Proportional to 5,715.56 and 8,674.59

Step by Step Solution

1. Step 1: Write the proportion equation
   5,715.56 : 8,674.59 = 8,674.59 : x
2. Step 2: Convert to fraction form
   5,715.56/8,674.59 = 8,674.59/x
3. Step 3: Cross multiply
   5,715.56x = 8,674.59 × 8,674.59
4. Step 4: Simplify right side
   5,715.56x = 75,248,576.73
5. Step 5: Solve for x
   x = 75,248,576.73/5,715.56
6. Step 6: Final answer
   x = 13,165.56