Finding the Third Proportional to 40,120 and 86,936

Step by Step Solution

1. Step 1: Write the proportion equation
   40,120 : 86,936 = 86,936 : x
2. Step 2: Convert to fraction form
   40,120/86,936 = 86,936/x
3. Step 3: Cross multiply
   40,120x = 86,936 × 86,936
4. Step 4: Simplify right side
   40,120x = 7,557,868,096
5. Step 5: Solve for x
   x = 7,557,868,096/40,120
6. Step 6: Final answer
   x = 188,381.56