Finding the Third Proportional to 10,256.91 and 20,475.56

Step by Step Solution

1. Step 1: Write the proportion equation
   10,256.91 : 20,475.56 = 20,475.56 : x
2. Step 2: Convert to fraction form
   10,256.91/20,475.56 = 20,475.56/x
3. Step 3: Cross multiply
   10,256.91x = 20,475.56 × 20,475.56
4. Step 4: Simplify right side
   10,256.91x = 419,248,659.69
5. Step 5: Solve for x
   x = 419,248,659.69/10,256.91
6. Step 6: Final answer
   x = 40,874.77