Finding the Third Proportional to 66,112 and 142,744

Step by Step Solution

1. Step 1: Write the proportion equation
   66,112 : 142,744 = 142,744 : x
2. Step 2: Convert to fraction form
   66,112/142,744 = 142,744/x
3. Step 3: Cross multiply
   66,112x = 142,744 × 142,744
4. Step 4: Simplify right side
   66,112x = 20,375,849,536
5. Step 5: Solve for x
   x = 20,375,849,536/66,112
6. Step 6: Final answer
   x = 308,201.98