Finding the Third Proportional to 145,300 and 222,176

Step by Step Solution

1. Step 1: Write the proportion equation
   145,300 : 222,176 = 222,176 : x
2. Step 2: Convert to fraction form
   145,300/222,176 = 222,176/x
3. Step 3: Cross multiply
   145,300x = 222,176 × 222,176
4. Step 4: Simplify right side
   145,300x = 49,362,174,976
5. Step 5: Solve for x
   x = 49,362,174,976/145,300
6. Step 6: Final answer
   x = 339,725.91