Finding the Third Proportional to 38,724 and 57,936

Step by Step Solution

1. Step 1: Write the proportion equation
   38,724 : 57,936 = 57,936 : x
2. Step 2: Convert to fraction form
   38,724/57,936 = 57,936/x
3. Step 3: Cross multiply
   38,724x = 57,936 × 57,936
4. Step 4: Simplify right side
   38,724x = 3,356,580,096
5. Step 5: Solve for x
   x = 3,356,580,096/38,724
6. Step 6: Final answer
   x = 86,679.58