Finding the Third Proportional to 19,966.50 and 42,849

Step by Step Solution

1. Step 1: Write the proportion equation
   19,966.50 : 42,849 = 42,849 : x
2. Step 2: Convert to fraction form
   19,966.50/42,849 = 42,849/x
3. Step 3: Cross multiply
   19,966.50x = 42,849 × 42,849
4. Step 4: Simplify right side
   19,966.50x = 1,836,036,801
5. Step 5: Solve for x
   x = 1,836,036,801/19,966.50
6. Step 6: Final answer
   x = 91,955.87