Finding the Third Proportional to 18,936.28 and 39,922.88

Step by Step Solution

1. Step 1: Write the proportion equation
   18,936.28 : 39,922.88 = 39,922.88 : x
2. Step 2: Convert to fraction form
   18,936.28/39,922.88 = 39,922.88/x
3. Step 3: Cross multiply
   18,936.28x = 39,922.88 × 39,922.88
4. Step 4: Simplify right side
   18,936.28x = 1,593,835,948.27
5. Step 5: Solve for x
   x = 1,593,835,948.27/18,936.28
6. Step 6: Final answer
   x = 84,168.37