Finding the Third Proportional to 11,102.06 and 21,180.94

Step by Step Solution

1. Step 1: Write the proportion equation
   11,102.06 : 21,180.94 = 21,180.94 : x
2. Step 2: Convert to fraction form
   11,102.06/21,180.94 = 21,180.94/x
3. Step 3: Cross multiply
   11,102.06x = 21,180.94 × 21,180.94
4. Step 4: Simplify right side
   11,102.06x = 448,632,113.38
5. Step 5: Solve for x
   x = 448,632,113.38/11,102.06
6. Step 6: Final answer
   x = 40,409.80