Finding the Third Proportional to 20,268 and 42,150

Step by Step Solution

1. Step 1: Write the proportion equation
   20,268 : 42,150 = 42,150 : x
2. Step 2: Convert to fraction form
   20,268/42,150 = 42,150/x
3. Step 3: Cross multiply
   20,268x = 42,150 × 42,150
4. Step 4: Simplify right side
   20,268x = 1,776,622,500
5. Step 5: Solve for x
   x = 1,776,622,500/20,268
6. Step 6: Final answer
   x = 87,656.53