Finding the Third Proportional to 155,856 and 222,868

Step by Step Solution

1. Step 1: Write the proportion equation
   155,856 : 222,868 = 222,868 : x
2. Step 2: Convert to fraction form
   155,856/222,868 = 222,868/x
3. Step 3: Cross multiply
   155,856x = 222,868 × 222,868
4. Step 4: Simplify right side
   155,856x = 49,670,145,424
5. Step 5: Solve for x
   x = 49,670,145,424/155,856
6. Step 6: Final answer
   x = 318,692.55