Finding the Third Proportional to 171,914 and 262,812

Step by Step Solution

1. Step 1: Write the proportion equation
   171,914 : 262,812 = 262,812 : x
2. Step 2: Convert to fraction form
   171,914/262,812 = 262,812/x
3. Step 3: Cross multiply
   171,914x = 262,812 × 262,812
4. Step 4: Simplify right side
   171,914x = 69,070,147,344
5. Step 5: Solve for x
   x = 69,070,147,344/171,914
6. Step 6: Final answer
   x = 401,771.51