Finding the Third Proportional to 220,644 and 476,274

Step by Step Solution

1. Step 1: Write the proportion equation
   220,644 : 476,274 = 476,274 : x
2. Step 2: Convert to fraction form
   220,644/476,274 = 476,274/x
3. Step 3: Cross multiply
   220,644x = 476,274 × 476,274
4. Step 4: Simplify right side
   220,644x = 226,836,923,076
5. Step 5: Solve for x
   x = 226,836,923,076/220,644
6. Step 6: Final answer
   x = 1,028,067.49