Finding the Third Proportional to 54,760 and 83,792

Step by Step Solution

1. Step 1: Write the proportion equation
   54,760 : 83,792 = 83,792 : x
2. Step 2: Convert to fraction form
   54,760/83,792 = 83,792/x
3. Step 3: Cross multiply
   54,760x = 83,792 × 83,792
4. Step 4: Simplify right side
   54,760x = 7,021,099,264
5. Step 5: Solve for x
   x = 7,021,099,264/54,760
6. Step 6: Final answer
   x = 128,215.84