Finding the Third Proportional to 13,646.25 and 20,385.56

Step by Step Solution

1. Step 1: Write the proportion equation
   13,646.25 : 20,385.56 = 20,385.56 : x
2. Step 2: Convert to fraction form
   13,646.25/20,385.56 = 20,385.56/x
3. Step 3: Cross multiply
   13,646.25x = 20,385.56 × 20,385.56
4. Step 4: Simplify right side
   13,646.25x = 415,571,158.44
5. Step 5: Solve for x
   x = 415,571,158.44/13,646.25
6. Step 6: Final answer
   x = 30,453.14