Finding the Third Proportional to 171,591 and 262,488

Step by Step Solution

1. Step 1: Write the proportion equation
   171,591 : 262,488 = 262,488 : x
2. Step 2: Convert to fraction form
   171,591/262,488 = 262,488/x
3. Step 3: Cross multiply
   171,591x = 262,488 × 262,488
4. Step 4: Simplify right side
   171,591x = 68,899,950,144
5. Step 5: Solve for x
   x = 68,899,950,144/171,591
6. Step 6: Final answer
   x = 401,535.92