Finding the Third Proportional to 479,814 and 717,078

Step by Step Solution

1. Step 1: Write the proportion equation
   479,814 : 717,078 = 717,078 : x
2. Step 2: Convert to fraction form
   479,814/717,078 = 717,078/x
3. Step 3: Cross multiply
   479,814x = 717,078 × 717,078
4. Step 4: Simplify right side
   479,814x = 514,200,858,084
5. Step 5: Solve for x
   x = 514,200,858,084/479,814
6. Step 6: Final answer
   x = 1,071,667.06