Finding the Third Proportional to 155,826 and 222,831

Step by Step Solution

1. Step 1: Write the proportion equation
   155,826 : 222,831 = 222,831 : x
2. Step 2: Convert to fraction form
   155,826/222,831 = 222,831/x
3. Step 3: Cross multiply
   155,826x = 222,831 × 222,831
4. Step 4: Simplify right side
   155,826x = 49,653,654,561
5. Step 5: Solve for x
   x = 49,653,654,561/155,826
6. Step 6: Final answer
   x = 318,648.07