Finding the Third Proportional to 3,510 and 5,279.25

Step by Step Solution

1. Step 1: Write the proportion equation
   3,510 : 5,279.25 = 5,279.25 : x
2. Step 2: Convert to fraction form
   3,510/5,279.25 = 5,279.25/x
3. Step 3: Cross multiply
   3,510x = 5,279.25 × 5,279.25
4. Step 4: Simplify right side
   3,510x = 27,870,480.56
5. Step 5: Solve for x
   x = 27,870,480.56/3,510
6. Step 6: Final answer
   x = 7,940.31