Finding the Third Proportional to 144,718 and 300,518

Step by Step Solution

1. Step 1: Write the proportion equation
   144,718 : 300,518 = 300,518 : x
2. Step 2: Convert to fraction form
   144,718/300,518 = 300,518/x
3. Step 3: Cross multiply
   144,718x = 300,518 × 300,518
4. Step 4: Simplify right side
   144,718x = 90,311,068,324
5. Step 5: Solve for x
   x = 90,311,068,324/144,718
6. Step 6: Final answer
   x = 624,048.62