Finding the Third Proportional to 3,862.69 and 7,173.56

Step by Step Solution

1. Step 1: Write the proportion equation
   3,862.69 : 7,173.56 = 7,173.56 : x
2. Step 2: Convert to fraction form
   3,862.69/7,173.56 = 7,173.56/x
3. Step 3: Cross multiply
   3,862.69x = 7,173.56 × 7,173.56
4. Step 4: Simplify right side
   3,862.69x = 51,459,998.94
5. Step 5: Solve for x
   x = 51,459,998.94/3,862.69
6. Step 6: Final answer
   x = 13,322.33