Finding the Third Proportional to 56,660 and 111,912

Step by Step Solution

1. Step 1: Write the proportion equation
   56,660 : 111,912 = 111,912 : x
2. Step 2: Convert to fraction form
   56,660/111,912 = 111,912/x
3. Step 3: Cross multiply
   56,660x = 111,912 × 111,912
4. Step 4: Simplify right side
   56,660x = 12,524,295,744
5. Step 5: Solve for x
   x = 12,524,295,744/56,660
6. Step 6: Final answer
   x = 221,042.99