Finding the Third Proportional to 171,736 and 262,708

Step by Step Solution

1. Step 1: Write the proportion equation
   171,736 : 262,708 = 262,708 : x
2. Step 2: Convert to fraction form
   171,736/262,708 = 262,708/x
3. Step 3: Cross multiply
   171,736x = 262,708 × 262,708
4. Step 4: Simplify right side
   171,736x = 69,015,493,264
5. Step 5: Solve for x
   x = 69,015,493,264/171,736
6. Step 6: Final answer
   x = 401,869.69