Finding the Third Proportional to 3,316.31 and 7,150.69

Step by Step Solution

1. Step 1: Write the proportion equation
   3,316.31 : 7,150.69 = 7,150.69 : x
2. Step 2: Convert to fraction form
   3,316.31/7,150.69 = 7,150.69/x
3. Step 3: Cross multiply
   3,316.31x = 7,150.69 × 7,150.69
4. Step 4: Simplify right side
   3,316.31x = 51,132,331.72
5. Step 5: Solve for x
   x = 51,132,331.72/3,316.31
6. Step 6: Final answer
   x = 15,418.43