Finding the Third Proportional to 222,414 and 489,099.50

Step by Step Solution

1. Step 1: Write the proportion equation
   222,414 : 489,099.50 = 489,099.50 : x
2. Step 2: Convert to fraction form
   222,414/489,099.50 = 489,099.50/x
3. Step 3: Cross multiply
   222,414x = 489,099.50 × 489,099.50
4. Step 4: Simplify right side
   222,414x = 239,218,320,900.25
5. Step 5: Solve for x
   x = 239,218,320,900.25/222,414
6. Step 6: Final answer
   x = 1,075,554.24