Finding the Third Proportional to 5,605 and 12,015.50

Step by Step Solution

1. Step 1: Write the proportion equation
   5,605 : 12,015.50 = 12,015.50 : x
2. Step 2: Convert to fraction form
   5,605/12,015.50 = 12,015.50/x
3. Step 3: Cross multiply
   5,605x = 12,015.50 × 12,015.50
4. Step 4: Simplify right side
   5,605x = 144,372,240.25
5. Step 5: Solve for x
   x = 144,372,240.25/5,605
6. Step 6: Final answer
   x = 25,757.76