Finding the Third Proportional to 11,436 and 19,866

Step by Step Solution

1. Step 1: Write the proportion equation
   11,436 : 19,866 = 19,866 : x
2. Step 2: Convert to fraction form
   11,436/19,866 = 19,866/x
3. Step 3: Cross multiply
   11,436x = 19,866 × 19,866
4. Step 4: Simplify right side
   11,436x = 394,657,956
5. Step 5: Solve for x
   x = 394,657,956/11,436
6. Step 6: Final answer
   x = 34,510.14