Finding the Third Proportional to 5,555.25 and 8,113.50

Step by Step Solution

1. Step 1: Write the proportion equation
   5,555.25 : 8,113.50 = 8,113.50 : x
2. Step 2: Convert to fraction form
   5,555.25/8,113.50 = 8,113.50/x
3. Step 3: Cross multiply
   5,555.25x = 8,113.50 × 8,113.50
4. Step 4: Simplify right side
   5,555.25x = 65,828,882.25
5. Step 5: Solve for x
   x = 65,828,882.25/5,555.25
6. Step 6: Final answer
   x = 11,849.85