Finding the Third Proportional to 159,680 and 222,020

Step by Step Solution

1. Step 1: Write the proportion equation
   159,680 : 222,020 = 222,020 : x
2. Step 2: Convert to fraction form
   159,680/222,020 = 222,020/x
3. Step 3: Cross multiply
   159,680x = 222,020 × 222,020
4. Step 4: Simplify right side
   159,680x = 49,292,880,400
5. Step 5: Solve for x
   x = 49,292,880,400/159,680
6. Step 6: Final answer
   x = 308,697.90