Finding the Third Proportional to 296,436 and 443,838

Step by Step Solution

1. Step 1: Write the proportion equation
   296,436 : 443,838 = 443,838 : x
2. Step 2: Convert to fraction form
   296,436/443,838 = 443,838/x
3. Step 3: Cross multiply
   296,436x = 443,838 × 443,838
4. Step 4: Simplify right side
   296,436x = 196,992,170,244
5. Step 5: Solve for x
   x = 196,992,170,244/296,436
6. Step 6: Final answer
   x = 664,535.25