Finding the Third Proportional to 144,488 and 309,006

Step by Step Solution

1. Step 1: Write the proportion equation
   144,488 : 309,006 = 309,006 : x
2. Step 2: Convert to fraction form
   144,488/309,006 = 309,006/x
3. Step 3: Cross multiply
   144,488x = 309,006 × 309,006
4. Step 4: Simplify right side
   144,488x = 95,484,708,036
5. Step 5: Solve for x
   x = 95,484,708,036/144,488
6. Step 6: Final answer
   x = 660,848.71