Finding the Third Proportional to 218,110 and 476,816

Step by Step Solution

1. Step 1: Write the proportion equation
   218,110 : 476,816 = 476,816 : x
2. Step 2: Convert to fraction form
   218,110/476,816 = 476,816/x
3. Step 3: Cross multiply
   218,110x = 476,816 × 476,816
4. Step 4: Simplify right side
   218,110x = 227,353,497,856
5. Step 5: Solve for x
   x = 227,353,497,856/218,110
6. Step 6: Final answer
   x = 1,042,379.98