Finding the Third Proportional to 142,750 and 222,030

Step by Step Solution

1. Step 1: Write the proportion equation
   142,750 : 222,030 = 222,030 : x
2. Step 2: Convert to fraction form
   142,750/222,030 = 222,030/x
3. Step 3: Cross multiply
   142,750x = 222,030 × 222,030
4. Step 4: Simplify right side
   142,750x = 49,297,320,900
5. Step 5: Solve for x
   x = 49,297,320,900/142,750
6. Step 6: Final answer
   x = 345,340.25