Finding the Third Proportional to 171,682 and 262,630

Step by Step Solution

1. Step 1: Write the proportion equation
   171,682 : 262,630 = 262,630 : x
2. Step 2: Convert to fraction form
   171,682/262,630 = 262,630/x
3. Step 3: Cross multiply
   171,682x = 262,630 × 262,630
4. Step 4: Simplify right side
   171,682x = 68,974,516,900
5. Step 5: Solve for x
   x = 68,974,516,900/171,682
6. Step 6: Final answer
   x = 401,757.42