Finding the Third Proportional to 14,603.63 and 20,558.81

Step by Step Solution

1. Step 1: Write the proportion equation
   14,603.63 : 20,558.81 = 20,558.81 : x
2. Step 2: Convert to fraction form
   14,603.63/20,558.81 = 20,558.81/x
3. Step 3: Cross multiply
   14,603.63x = 20,558.81 × 20,558.81
4. Step 4: Simplify right side
   14,603.63x = 422,664,771.41
5. Step 5: Solve for x
   x = 422,664,771.41/14,603.63
6. Step 6: Final answer
   x = 28,942.46