Finding the Third Proportional to 154,708 and 329,648

Step by Step Solution

1. Step 1: Write the proportion equation
   154,708 : 329,648 = 329,648 : x
2. Step 2: Convert to fraction form
   154,708/329,648 = 329,648/x
3. Step 3: Cross multiply
   154,708x = 329,648 × 329,648
4. Step 4: Simplify right side
   154,708x = 108,667,803,904
5. Step 5: Solve for x
   x = 108,667,803,904/154,708
6. Step 6: Final answer
   x = 702,405.85