Finding the Third Proportional to 221,736 and 474,972

Step by Step Solution

1. Step 1: Write the proportion equation
   221,736 : 474,972 = 474,972 : x
2. Step 2: Convert to fraction form
   221,736/474,972 = 474,972/x
3. Step 3: Cross multiply
   221,736x = 474,972 × 474,972
4. Step 4: Simplify right side
   221,736x = 225,598,400,784
5. Step 5: Solve for x
   x = 225,598,400,784/221,736
6. Step 6: Final answer
   x = 1,017,418.92