Finding the Third Proportional to 111,413 and 231,360

Step by Step Solution

1. Step 1: Write the proportion equation
   111,413 : 231,360 = 231,360 : x
2. Step 2: Convert to fraction form
   111,413/231,360 = 231,360/x
3. Step 3: Cross multiply
   111,413x = 231,360 × 231,360
4. Step 4: Simplify right side
   111,413x = 53,527,449,600
5. Step 5: Solve for x
   x = 53,527,449,600/111,413
6. Step 6: Final answer
   x = 480,441.69