Finding the Third Proportional to 171,569 and 262,456

Step by Step Solution

1. Step 1: Write the proportion equation
   171,569 : 262,456 = 262,456 : x
2. Step 2: Convert to fraction form
   171,569/262,456 = 262,456/x
3. Step 3: Cross multiply
   171,569x = 262,456 × 262,456
4. Step 4: Simplify right side
   171,569x = 68,883,151,936
5. Step 5: Solve for x
   x = 68,883,151,936/171,569
6. Step 6: Final answer
   x = 401,489.50