Finding the Third Proportional to 132,801 and 287,728

Step by Step Solution

1. Step 1: Write the proportion equation
   132,801 : 287,728 = 287,728 : x
2. Step 2: Convert to fraction form
   132,801/287,728 = 287,728/x
3. Step 3: Cross multiply
   132,801x = 287,728 × 287,728
4. Step 4: Simplify right side
   132,801x = 82,787,401,984
5. Step 5: Solve for x
   x = 82,787,401,984/132,801
6. Step 6: Final answer
   x = 623,394.42