Finding the Third Proportional to 108,900 and 222,408

Step by Step Solution

1. Step 1: Write the proportion equation
   108,900 : 222,408 = 222,408 : x
2. Step 2: Convert to fraction form
   108,900/222,408 = 222,408/x
3. Step 3: Cross multiply
   108,900x = 222,408 × 222,408
4. Step 4: Simplify right side
   108,900x = 49,465,318,464
5. Step 5: Solve for x
   x = 49,465,318,464/108,900
6. Step 6: Final answer
   x = 454,226.98