Finding the Third Proportional to 315,622 and 443,946

Step by Step Solution

1. Step 1: Write the proportion equation
   315,622 : 443,946 = 443,946 : x
2. Step 2: Convert to fraction form
   315,622/443,946 = 443,946/x
3. Step 3: Cross multiply
   315,622x = 443,946 × 443,946
4. Step 4: Simplify right side
   315,622x = 197,088,050,916
5. Step 5: Solve for x
   x = 197,088,050,916/315,622
6. Step 6: Final answer
   x = 624,443.32