Finding the Third Proportional to 10,476 and 21,255.75

Step by Step Solution

1. Step 1: Write the proportion equation
   10,476 : 21,255.75 = 21,255.75 : x
2. Step 2: Convert to fraction form
   10,476/21,255.75 = 21,255.75/x
3. Step 3: Cross multiply
   10,476x = 21,255.75 × 21,255.75
4. Step 4: Simplify right side
   10,476x = 451,806,908.06
5. Step 5: Solve for x
   x = 451,806,908.06/10,476
6. Step 6: Final answer
   x = 43,127.81