Finding the Third Proportional to 221,938 and 479,348

Step by Step Solution

1. Step 1: Write the proportion equation
   221,938 : 479,348 = 479,348 : x
2. Step 2: Convert to fraction form
   221,938/479,348 = 479,348/x
3. Step 3: Cross multiply
   221,938x = 479,348 × 479,348
4. Step 4: Simplify right side
   221,938x = 229,774,505,104
5. Step 5: Solve for x
   x = 229,774,505,104/221,938
6. Step 6: Final answer
   x = 1,035,309.43