Finding the Third Proportional to 222,374 and 489,030

Step by Step Solution

1. Step 1: Write the proportion equation
   222,374 : 489,030 = 489,030 : x
2. Step 2: Convert to fraction form
   222,374/489,030 = 489,030/x
3. Step 3: Cross multiply
   222,374x = 489,030 × 489,030
4. Step 4: Simplify right side
   222,374x = 239,150,340,900
5. Step 5: Solve for x
   x = 239,150,340,900/222,374
6. Step 6: Final answer
   x = 1,075,442.01