Finding the Third Proportional to 219,662 and 479,608

Step by Step Solution

1. Step 1: Write the proportion equation
   219,662 : 479,608 = 479,608 : x
2. Step 2: Convert to fraction form
   219,662/479,608 = 479,608/x
3. Step 3: Cross multiply
   219,662x = 479,608 × 479,608
4. Step 4: Simplify right side
   219,662x = 230,023,833,664
5. Step 5: Solve for x
   x = 230,023,833,664/219,662
6. Step 6: Final answer
   x = 1,047,171.72