Finding the Third Proportional to 144,009 and 297,211.50

Step by Step Solution

1. Step 1: Write the proportion equation
   144,009 : 297,211.50 = 297,211.50 : x
2. Step 2: Convert to fraction form
   144,009/297,211.50 = 297,211.50/x
3. Step 3: Cross multiply
   144,009x = 297,211.50 × 297,211.50
4. Step 4: Simplify right side
   144,009x = 88,334,675,732.25
5. Step 5: Solve for x
   x = 88,334,675,732.25/144,009
6. Step 6: Final answer
   x = 613,396.91