Finding the Third Proportional to 144,662 and 221,162

Step by Step Solution

1. Step 1: Write the proportion equation
   144,662 : 221,162 = 221,162 : x
2. Step 2: Convert to fraction form
   144,662/221,162 = 221,162/x
3. Step 3: Cross multiply
   144,662x = 221,162 × 221,162
4. Step 4: Simplify right side
   144,662x = 48,912,630,244
5. Step 5: Solve for x
   x = 48,912,630,244/144,662
6. Step 6: Final answer
   x = 338,116.65