Finding the Third Proportional to 76,142.53 and 111,616.73

Step by Step Solution

1. Step 1: Write the proportion equation
   76,142.53 : 111,616.73 = 111,616.73 : x
2. Step 2: Convert to fraction form
   76,142.53/111,616.73 = 111,616.73/x
3. Step 3: Cross multiply
   76,142.53x = 111,616.73 × 111,616.73
4. Step 4: Simplify right side
   76,142.53x = 12,458,295,392.54
5. Step 5: Solve for x
   x = 12,458,295,392.54/76,142.53
6. Step 6: Final answer
   x = 163,618.09