Finding the Third Proportional to 315,610 and 443,927

Step by Step Solution

1. Step 1: Write the proportion equation
   315,610 : 443,927 = 443,927 : x
2. Step 2: Convert to fraction form
   315,610/443,927 = 443,927/x
3. Step 3: Cross multiply
   315,610x = 443,927 × 443,927
4. Step 4: Simplify right side
   315,610x = 197,071,181,329
5. Step 5: Solve for x
   x = 197,071,181,329/315,610
6. Step 6: Final answer
   x = 624,413.62