Finding the Third Proportional to 112,603.50 and 231,555

Step by Step Solution

1. Step 1: Write the proportion equation
   112,603.50 : 231,555 = 231,555 : x
2. Step 2: Convert to fraction form
   112,603.50/231,555 = 231,555/x
3. Step 3: Cross multiply
   112,603.50x = 231,555 × 231,555
4. Step 4: Simplify right side
   112,603.50x = 53,617,718,025
5. Step 5: Solve for x
   x = 53,617,718,025/112,603.50
6. Step 6: Final answer
   x = 476,163.87