Finding the Third Proportional to 315,596 and 443,906

Step by Step Solution

1. Step 1: Write the proportion equation
   315,596 : 443,906 = 443,906 : x
2. Step 2: Convert to fraction form
   315,596/443,906 = 443,906/x
3. Step 3: Cross multiply
   315,596x = 443,906 × 443,906
4. Step 4: Simplify right side
   315,596x = 197,052,536,836
5. Step 5: Solve for x
   x = 197,052,536,836/315,596
6. Step 6: Final answer
   x = 624,382.24