Finding the Third Proportional to 59,760 and 87,912

Step by Step Solution

1. Step 1: Write the proportion equation
   59,760 : 87,912 = 87,912 : x
2. Step 2: Convert to fraction form
   59,760/87,912 = 87,912/x
3. Step 3: Cross multiply
   59,760x = 87,912 × 87,912
4. Step 4: Simplify right side
   59,760x = 7,728,519,744
5. Step 5: Solve for x
   x = 7,728,519,744/59,760
6. Step 6: Final answer
   x = 129,325.97