Finding the Third Proportional to 144,883.50 and 221,631

Step by Step Solution

1. Step 1: Write the proportion equation
   144,883.50 : 221,631 = 221,631 : x
2. Step 2: Convert to fraction form
   144,883.50/221,631 = 221,631/x
3. Step 3: Cross multiply
   144,883.50x = 221,631 × 221,631
4. Step 4: Simplify right side
   144,883.50x = 49,120,300,161
5. Step 5: Solve for x
   x = 49,120,300,161/144,883.50
6. Step 6: Final answer
   x = 339,033.09