Finding the Third Proportional to 50,420 and 109,912

Step by Step Solution

1. Step 1: Write the proportion equation
   50,420 : 109,912 = 109,912 : x
2. Step 2: Convert to fraction form
   50,420/109,912 = 109,912/x
3. Step 3: Cross multiply
   50,420x = 109,912 × 109,912
4. Step 4: Simplify right side
   50,420x = 12,080,647,744
5. Step 5: Solve for x
   x = 12,080,647,744/50,420
6. Step 6: Final answer
   x = 239,600.31