Finding the Third Proportional to 19,986 and 42,888

Step by Step Solution

1. Step 1: Write the proportion equation
   19,986 : 42,888 = 42,888 : x
2. Step 2: Convert to fraction form
   19,986/42,888 = 42,888/x
3. Step 3: Cross multiply
   19,986x = 42,888 × 42,888
4. Step 4: Simplify right side
   19,986x = 1,839,380,544
5. Step 5: Solve for x
   x = 1,839,380,544/19,986
6. Step 6: Final answer
   x = 92,033.45