Finding the Third Proportional to 3,871.13 and 7,434.56

Step by Step Solution

1. Step 1: Write the proportion equation
   3,871.13 : 7,434.56 = 7,434.56 : x
2. Step 2: Convert to fraction form
   3,871.13/7,434.56 = 7,434.56/x
3. Step 3: Cross multiply
   3,871.13x = 7,434.56 × 7,434.56
4. Step 4: Simplify right side
   3,871.13x = 55,272,719.57
5. Step 5: Solve for x
   x = 55,272,719.57/3,871.13
6. Step 6: Final answer
   x = 14,278.21