Finding the Third Proportional to 315,598.50 and 443,912.25

Step by Step Solution

1. Step 1: Write the proportion equation
   315,598.50 : 443,912.25 = 443,912.25 : x
2. Step 2: Convert to fraction form
   315,598.50/443,912.25 = 443,912.25/x
3. Step 3: Cross multiply
   315,598.50x = 443,912.25 × 443,912.25
4. Step 4: Simplify right side
   315,598.50x = 197,058,085,700.06
5. Step 5: Solve for x
   x = 197,058,085,700.06/315,598.50
6. Step 6: Final answer
   x = 624,394.87