Finding the Third Proportional to 220,928 and 472,816

Step by Step Solution

1. Step 1: Write the proportion equation
   220,928 : 472,816 = 472,816 : x
2. Step 2: Convert to fraction form
   220,928/472,816 = 472,816/x
3. Step 3: Cross multiply
   220,928x = 472,816 × 472,816
4. Step 4: Simplify right side
   220,928x = 223,554,969,856
5. Step 5: Solve for x
   x = 223,554,969,856/220,928
6. Step 6: Final answer
   x = 1,011,890.62