Finding the Third Proportional to 145,158 and 222,057

Step by Step Solution

1. Step 1: Write the proportion equation
   145,158 : 222,057 = 222,057 : x
2. Step 2: Convert to fraction form
   145,158/222,057 = 222,057/x
3. Step 3: Cross multiply
   145,158x = 222,057 × 222,057
4. Step 4: Simplify right side
   145,158x = 49,309,311,249
5. Step 5: Solve for x
   x = 49,309,311,249/145,158
6. Step 6: Final answer
   x = 339,694.07