Finding the Third Proportional to 143,380 and 222,908

Step by Step Solution

1. Step 1: Write the proportion equation
   143,380 : 222,908 = 222,908 : x
2. Step 2: Convert to fraction form
   143,380/222,908 = 222,908/x
3. Step 3: Cross multiply
   143,380x = 222,908 × 222,908
4. Step 4: Simplify right side
   143,380x = 49,687,976,464
5. Step 5: Solve for x
   x = 49,687,976,464/143,380
6. Step 6: Final answer
   x = 346,547.47