Finding the Third Proportional to 221,930 and 479,330

Step by Step Solution

1. Step 1: Write the proportion equation
   221,930 : 479,330 = 479,330 : x
2. Step 2: Convert to fraction form
   221,930/479,330 = 479,330/x
3. Step 3: Cross multiply
   221,930x = 479,330 × 479,330
4. Step 4: Simplify right side
   221,930x = 229,757,248,900
5. Step 5: Solve for x
   x = 229,757,248,900/221,930
6. Step 6: Final answer
   x = 1,035,269.00