Finding the Third Proportional to 1,281.38 and 2,758.29

Step by Step Solution

1. Step 1: Write the proportion equation
   1,281.38 : 2,758.29 = 2,758.29 : x
2. Step 2: Convert to fraction form
   1,281.38/2,758.29 = 2,758.29/x
3. Step 3: Cross multiply
   1,281.38x = 2,758.29 × 2,758.29
4. Step 4: Simplify right side
   1,281.38x = 7,608,158.55
5. Step 5: Solve for x
   x = 7,608,158.55/1,281.38
6. Step 6: Final answer
   x = 5,937.50