Finding the Third Proportional to 145,288 and 222,160

Step by Step Solution

1. Step 1: Write the proportion equation
   145,288 : 222,160 = 222,160 : x
2. Step 2: Convert to fraction form
   145,288/222,160 = 222,160/x
3. Step 3: Cross multiply
   145,288x = 222,160 × 222,160
4. Step 4: Simplify right side
   145,288x = 49,355,065,600
5. Step 5: Solve for x
   x = 49,355,065,600/145,288
6. Step 6: Final answer
   x = 339,705.04