Finding the Third Proportional to 57,270 and 123,015

Step by Step Solution

1. Step 1: Write the proportion equation
   57,270 : 123,015 = 123,015 : x
2. Step 2: Convert to fraction form
   57,270/123,015 = 123,015/x
3. Step 3: Cross multiply
   57,270x = 123,015 × 123,015
4. Step 4: Simplify right side
   57,270x = 15,132,690,225
5. Step 5: Solve for x
   x = 15,132,690,225/57,270
6. Step 6: Final answer
   x = 264,234.16