Finding the Third Proportional to 13,705.88 and 20,504.81

Step by Step Solution

1. Step 1: Write the proportion equation
   13,705.88 : 20,504.81 = 20,504.81 : x
2. Step 2: Convert to fraction form
   13,705.88/20,504.81 = 20,504.81/x
3. Step 3: Cross multiply
   13,705.88x = 20,504.81 × 20,504.81
4. Step 4: Simplify right side
   13,705.88x = 420,447,335.66
5. Step 5: Solve for x
   x = 420,447,335.66/13,705.88
6. Step 6: Final answer
   x = 30,676.43