Finding the Third Proportional to 218,678 and 473,626

Step by Step Solution

1. Step 1: Write the proportion equation
   218,678 : 473,626 = 473,626 : x
2. Step 2: Convert to fraction form
   218,678/473,626 = 473,626/x
3. Step 3: Cross multiply
   218,678x = 473,626 × 473,626
4. Step 4: Simplify right side
   218,678x = 224,321,587,876
5. Step 5: Solve for x
   x = 224,321,587,876/218,678
6. Step 6: Final answer
   x = 1,025,807.75