Finding the Third Proportional to 11,017 and 21,480.50

Step by Step Solution

1. Step 1: Write the proportion equation
   11,017 : 21,480.50 = 21,480.50 : x
2. Step 2: Convert to fraction form
   11,017/21,480.50 = 21,480.50/x
3. Step 3: Cross multiply
   11,017x = 21,480.50 × 21,480.50
4. Step 4: Simplify right side
   11,017x = 461,411,880.25
5. Step 5: Solve for x
   x = 461,411,880.25/11,017
6. Step 6: Final answer
   x = 41,881.81