Finding the Third Proportional to 219,902 and 479,300

Step by Step Solution

1. Step 1: Write the proportion equation
   219,902 : 479,300 = 479,300 : x
2. Step 2: Convert to fraction form
   219,902/479,300 = 479,300/x
3. Step 3: Cross multiply
   219,902x = 479,300 × 479,300
4. Step 4: Simplify right side
   219,902x = 229,728,490,000
5. Step 5: Solve for x
   x = 229,728,490,000/219,902
6. Step 6: Final answer
   x = 1,044,685.77