Finding the Third Proportional to 10,916 and 20,968

Step by Step Solution

1. Step 1: Write the proportion equation
   10,916 : 20,968 = 20,968 : x
2. Step 2: Convert to fraction form
   10,916/20,968 = 20,968/x
3. Step 3: Cross multiply
   10,916x = 20,968 × 20,968
4. Step 4: Simplify right side
   10,916x = 439,657,024
5. Step 5: Solve for x
   x = 439,657,024/10,916
6. Step 6: Final answer
   x = 40,276.39