Finding the Third Proportional to 85,168 and 128,936

Step by Step Solution

1. Step 1: Write the proportion equation
   85,168 : 128,936 = 128,936 : x
2. Step 2: Convert to fraction form
   85,168/128,936 = 128,936/x
3. Step 3: Cross multiply
   85,168x = 128,936 × 128,936
4. Step 4: Simplify right side
   85,168x = 16,624,492,096
5. Step 5: Solve for x
   x = 16,624,492,096/85,168
6. Step 6: Final answer
   x = 195,196.46