Finding the Third Proportional to 72,578 and 111,027

Step by Step Solution

1. Step 1: Write the proportion equation
   72,578 : 111,027 = 111,027 : x
2. Step 2: Convert to fraction form
   72,578/111,027 = 111,027/x
3. Step 3: Cross multiply
   72,578x = 111,027 × 111,027
4. Step 4: Simplify right side
   72,578x = 12,326,994,729
5. Step 5: Solve for x
   x = 12,326,994,729/72,578
6. Step 6: Final answer
   x = 169,844.78