Finding the Third Proportional to 13,603.36 and 21,019.92

Step by Step Solution

1. Step 1: Write the proportion equation
   13,603.36 : 21,019.92 = 21,019.92 : x
2. Step 2: Convert to fraction form
   13,603.36/21,019.92 = 21,019.92/x
3. Step 3: Cross multiply
   13,603.36x = 21,019.92 × 21,019.92
4. Step 4: Simplify right side
   13,603.36x = 441,837,115.63
5. Step 5: Solve for x
   x = 441,837,115.63/13,603.36
6. Step 6: Final answer
   x = 32,480.00