Finding the Third Proportional to 7,311 and 10,419.38

Step by Step Solution

1. Step 1: Write the proportion equation
   7,311 : 10,419.38 = 10,419.38 : x
2. Step 2: Convert to fraction form
   7,311/10,419.38 = 10,419.38/x
3. Step 3: Cross multiply
   7,311x = 10,419.38 × 10,419.38
4. Step 4: Simplify right side
   7,311x = 108,563,375.39
5. Step 5: Solve for x
   x = 108,563,375.39/7,311
6. Step 6: Final answer
   x = 14,849.32