Finding the Third Proportional to 140,029 and 222,638

Step by Step Solution

1. Step 1: Write the proportion equation
   140,029 : 222,638 = 222,638 : x
2. Step 2: Convert to fraction form
   140,029/222,638 = 222,638/x
3. Step 3: Cross multiply
   140,029x = 222,638 × 222,638
4. Step 4: Simplify right side
   140,029x = 49,567,679,044
5. Step 5: Solve for x
   x = 49,567,679,044/140,029
6. Step 6: Final answer
   x = 353,981.53