Finding the Third Proportional to 145,216 and 222,096

Step by Step Solution

1. Step 1: Write the proportion equation
   145,216 : 222,096 = 222,096 : x
2. Step 2: Convert to fraction form
   145,216/222,096 = 222,096/x
3. Step 3: Cross multiply
   145,216x = 222,096 × 222,096
4. Step 4: Simplify right side
   145,216x = 49,326,633,216
5. Step 5: Solve for x
   x = 49,326,633,216/145,216
6. Step 6: Final answer
   x = 339,677.67