Finding the Third Proportional to 1,078.31 and 1,668.94

Step by Step Solution

1. Step 1: Write the proportion equation
   1,078.31 : 1,668.94 = 1,668.94 : x
2. Step 2: Convert to fraction form
   1,078.31/1,668.94 = 1,668.94/x
3. Step 3: Cross multiply
   1,078.31x = 1,668.94 × 1,668.94
4. Step 4: Simplify right side
   1,078.31x = 2,785,352.38
5. Step 5: Solve for x
   x = 2,785,352.38/1,078.31
6. Step 6: Final answer
   x = 2,583.07