Finding the Third Proportional to 159,678 and 250,488

Step by Step Solution

1. Step 1: Write the proportion equation
   159,678 : 250,488 = 250,488 : x
2. Step 2: Convert to fraction form
   159,678/250,488 = 250,488/x
3. Step 3: Cross multiply
   159,678x = 250,488 × 250,488
4. Step 4: Simplify right side
   159,678x = 62,744,238,144
5. Step 5: Solve for x
   x = 62,744,238,144/159,678
6. Step 6: Final answer
   x = 392,942.28