Finding the Third Proportional to 142,706 and 222,230

Step by Step Solution

1. Step 1: Write the proportion equation
   142,706 : 222,230 = 222,230 : x
2. Step 2: Convert to fraction form
   142,706/222,230 = 222,230/x
3. Step 3: Cross multiply
   142,706x = 222,230 × 222,230
4. Step 4: Simplify right side
   142,706x = 49,386,172,900
5. Step 5: Solve for x
   x = 49,386,172,900/142,706
6. Step 6: Final answer
   x = 346,069.35