Finding the Third Proportional to 30,759.75 and 72,768.38

Step by Step Solution

1. Step 1: Write the proportion equation
   30,759.75 : 72,768.38 = 72,768.38 : x
2. Step 2: Convert to fraction form
   30,759.75/72,768.38 = 72,768.38/x
3. Step 3: Cross multiply
   30,759.75x = 72,768.38 × 72,768.38
4. Step 4: Simplify right side
   30,759.75x = 5,295,236,400.14
5. Step 5: Solve for x
   x = 5,295,236,400.14/30,759.75
6. Step 6: Final answer
   x = 172,148.23