Finding the Third Proportional to 8,313.38 and 12,145.88

Step by Step Solution

1. Step 1: Write the proportion equation
   8,313.38 : 12,145.88 = 12,145.88 : x
2. Step 2: Convert to fraction form
   8,313.38/12,145.88 = 12,145.88/x
3. Step 3: Cross multiply
   8,313.38x = 12,145.88 × 12,145.88
4. Step 4: Simplify right side
   8,313.38x = 147,522,279.52
5. Step 5: Solve for x
   x = 147,522,279.52/8,313.38
6. Step 6: Final answer
   x = 17,745.17