Finding the Third Proportional to 220,826 and 476,644

Step by Step Solution

1. Step 1: Write the proportion equation
   220,826 : 476,644 = 476,644 : x
2. Step 2: Convert to fraction form
   220,826/476,644 = 476,644/x
3. Step 3: Cross multiply
   220,826x = 476,644 × 476,644
4. Step 4: Simplify right side
   220,826x = 227,189,502,736
5. Step 5: Solve for x
   x = 227,189,502,736/220,826
6. Step 6: Final answer
   x = 1,028,816.82