Finding the Third Proportional to 18,078.75 and 27,806.63

Step by Step Solution

1. Step 1: Write the proportion equation
   18,078.75 : 27,806.63 = 27,806.63 : x
2. Step 2: Convert to fraction form
   18,078.75/27,806.63 = 27,806.63/x
3. Step 3: Cross multiply
   18,078.75x = 27,806.63 × 27,806.63
4. Step 4: Simplify right side
   18,078.75x = 773,208,393.89
5. Step 5: Solve for x
   x = 773,208,393.89/18,078.75
6. Step 6: Final answer
   x = 42,768.91