Finding the Third Proportional to 10,198.69 and 21,603.38

Step by Step Solution

1. Step 1: Write the proportion equation
   10,198.69 : 21,603.38 = 21,603.38 : x
2. Step 2: Convert to fraction form
   10,198.69/21,603.38 = 21,603.38/x
3. Step 3: Cross multiply
   10,198.69x = 21,603.38 × 21,603.38
4. Step 4: Simplify right side
   10,198.69x = 466,705,811.39
5. Step 5: Solve for x
   x = 466,705,811.39/10,198.69
6. Step 6: Final answer
   x = 45,761.36