Finding the Third Proportional to 154,440 and 338,404

Step by Step Solution

1. Step 1: Write the proportion equation
   154,440 : 338,404 = 338,404 : x
2. Step 2: Convert to fraction form
   154,440/338,404 = 338,404/x
3. Step 3: Cross multiply
   154,440x = 338,404 × 338,404
4. Step 4: Simplify right side
   154,440x = 114,517,267,216
5. Step 5: Solve for x
   x = 114,517,267,216/154,440
6. Step 6: Final answer
   x = 741,500.05