Finding the Third Proportional to 443,016 and 669,132

Step by Step Solution

1. Step 1: Write the proportion equation
   443,016 : 669,132 = 669,132 : x
2. Step 2: Convert to fraction form
   443,016/669,132 = 669,132/x
3. Step 3: Cross multiply
   443,016x = 669,132 × 669,132
4. Step 4: Simplify right side
   443,016x = 447,737,633,424
5. Step 5: Solve for x
   x = 447,737,633,424/443,016
6. Step 6: Final answer
   x = 1,010,657.93