Finding the Third Proportional to 150,426 and 317,754

Step by Step Solution

1. Step 1: Write the proportion equation
   150,426 : 317,754 = 317,754 : x
2. Step 2: Convert to fraction form
   150,426/317,754 = 317,754/x
3. Step 3: Cross multiply
   150,426x = 317,754 × 317,754
4. Step 4: Simplify right side
   150,426x = 100,967,604,516
5. Step 5: Solve for x
   x = 100,967,604,516/150,426
6. Step 6: Final answer
   x = 671,211.12