Finding the Third Proportional to 5,581 and 8,443.25

Step by Step Solution

1. Step 1: Write the proportion equation
   5,581 : 8,443.25 = 8,443.25 : x
2. Step 2: Convert to fraction form
   5,581/8,443.25 = 8,443.25/x
3. Step 3: Cross multiply
   5,581x = 8,443.25 × 8,443.25
4. Step 4: Simplify right side
   5,581x = 71,288,470.56
5. Step 5: Solve for x
   x = 71,288,470.56/5,581
6. Step 6: Final answer
   x = 12,773.42