Finding the Third Proportional to 2,176.31 and 3,315.47

Step by Step Solution

1. Step 1: Write the proportion equation
   2,176.31 : 3,315.47 = 3,315.47 : x
2. Step 2: Convert to fraction form
   2,176.31/3,315.47 = 3,315.47/x
3. Step 3: Cross multiply
   2,176.31x = 3,315.47 × 3,315.47
4. Step 4: Simplify right side
   2,176.31x = 10,992,333.03
5. Step 5: Solve for x
   x = 10,992,333.03/2,176.31
6. Step 6: Final answer
   x = 5,050.90