Finding the Third Proportional to 142,713 and 222,240

Step by Step Solution

1. Step 1: Write the proportion equation
   142,713 : 222,240 = 222,240 : x
2. Step 2: Convert to fraction form
   142,713/222,240 = 222,240/x
3. Step 3: Cross multiply
   142,713x = 222,240 × 222,240
4. Step 4: Simplify right side
   142,713x = 49,390,617,600
5. Step 5: Solve for x
   x = 49,390,617,600/142,713
6. Step 6: Final answer
   x = 346,083.52