Finding the Third Proportional to 111,406 and 231,992

Step by Step Solution

1. Step 1: Write the proportion equation
   111,406 : 231,992 = 231,992 : x
2. Step 2: Convert to fraction form
   111,406/231,992 = 231,992/x
3. Step 3: Cross multiply
   111,406x = 231,992 × 231,992
4. Step 4: Simplify right side
   111,406x = 53,820,288,064
5. Step 5: Solve for x
   x = 53,820,288,064/111,406
6. Step 6: Final answer
   x = 483,100.44