Finding the Third Proportional to 111,372 and 231,960

Step by Step Solution

1. Step 1: Write the proportion equation
   111,372 : 231,960 = 231,960 : x
2. Step 2: Convert to fraction form
   111,372/231,960 = 231,960/x
3. Step 3: Cross multiply
   111,372x = 231,960 × 231,960
4. Step 4: Simplify right side
   111,372x = 53,805,441,600
5. Step 5: Solve for x
   x = 53,805,441,600/111,372
6. Step 6: Final answer
   x = 483,114.62