Finding the Third Proportional to 218,904 and 479,326

Step by Step Solution

1. Step 1: Write the proportion equation
   218,904 : 479,326 = 479,326 : x
2. Step 2: Convert to fraction form
   218,904/479,326 = 479,326/x
3. Step 3: Cross multiply
   218,904x = 479,326 × 479,326
4. Step 4: Simplify right side
   218,904x = 229,753,414,276
5. Step 5: Solve for x
   x = 229,753,414,276/218,904
6. Step 6: Final answer
   x = 1,049,562.43