Finding the Third Proportional to 19,893 and 42,150

Step by Step Solution

1. Step 1: Write the proportion equation
   19,893 : 42,150 = 42,150 : x
2. Step 2: Convert to fraction form
   19,893/42,150 = 42,150/x
3. Step 3: Cross multiply
   19,893x = 42,150 × 42,150
4. Step 4: Simplify right side
   19,893x = 1,776,622,500
5. Step 5: Solve for x
   x = 1,776,622,500/19,893
6. Step 6: Final answer
   x = 89,308.93