Finding the Third Proportional to 142,705 and 222,229

Step by Step Solution

1. Step 1: Write the proportion equation
   142,705 : 222,229 = 222,229 : x
2. Step 2: Convert to fraction form
   142,705/222,229 = 222,229/x
3. Step 3: Cross multiply
   142,705x = 222,229 × 222,229
4. Step 4: Simplify right side
   142,705x = 49,385,728,441
5. Step 5: Solve for x
   x = 49,385,728,441/142,705
6. Step 6: Final answer
   x = 346,068.66