Finding the Third Proportional to 18,015.75 and 27,644.63

Step by Step Solution

1. Step 1: Write the proportion equation
   18,015.75 : 27,644.63 = 27,644.63 : x
2. Step 2: Convert to fraction form
   18,015.75/27,644.63 = 27,644.63/x
3. Step 3: Cross multiply
   18,015.75x = 27,644.63 × 27,644.63
4. Step 4: Simplify right side
   18,015.75x = 764,225,291.39
5. Step 5: Solve for x
   x = 764,225,291.39/18,015.75
6. Step 6: Final answer
   x = 42,419.84