Finding the Third Proportional to 9,256.78 and 20,768.91

Step by Step Solution

1. Step 1: Write the proportion equation
   9,256.78 : 20,768.91 = 20,768.91 : x
2. Step 2: Convert to fraction form
   9,256.78/20,768.91 = 20,768.91/x
3. Step 3: Cross multiply
   9,256.78x = 20,768.91 × 20,768.91
4. Step 4: Simplify right side
   9,256.78x = 431,347,466.82
5. Step 5: Solve for x
   x = 431,347,466.82/9,256.78
6. Step 6: Final answer
   x = 46,598.00