Finding the Third Proportional to 143,340 and 222,694

Step by Step Solution

1. Step 1: Write the proportion equation
   143,340 : 222,694 = 222,694 : x
2. Step 2: Convert to fraction form
   143,340/222,694 = 222,694/x
3. Step 3: Cross multiply
   143,340x = 222,694 × 222,694
4. Step 4: Simplify right side
   143,340x = 49,592,617,636
5. Step 5: Solve for x
   x = 49,592,617,636/143,340
6. Step 6: Final answer
   x = 345,978.91