Finding the Third Proportional to 1,040.34 and 2,279.39

Step by Step Solution

1. Step 1: Write the proportion equation
   1,040.34 : 2,279.39 = 2,279.39 : x
2. Step 2: Convert to fraction form
   1,040.34/2,279.39 = 2,279.39/x
3. Step 3: Cross multiply
   1,040.34x = 2,279.39 × 2,279.39
4. Step 4: Simplify right side
   1,040.34x = 5,195,621.62
5. Step 5: Solve for x
   x = 5,195,621.62/1,040.34
6. Step 6: Final answer
   x = 4,994.14