Finding the Third Proportional to 158,921 and 222,793

Step by Step Solution

1. Step 1: Write the proportion equation
   158,921 : 222,793 = 222,793 : x
2. Step 2: Convert to fraction form
   158,921/222,793 = 222,793/x
3. Step 3: Cross multiply
   158,921x = 222,793 × 222,793
4. Step 4: Simplify right side
   158,921x = 49,636,720,849
5. Step 5: Solve for x
   x = 49,636,720,849/158,921
6. Step 6: Final answer
   x = 312,335.82