Finding the Third Proportional to 18,659.25 and 27,442.50

Step by Step Solution

1. Step 1: Write the proportion equation
   18,659.25 : 27,442.50 = 27,442.50 : x
2. Step 2: Convert to fraction form
   18,659.25/27,442.50 = 27,442.50/x
3. Step 3: Cross multiply
   18,659.25x = 27,442.50 × 27,442.50
4. Step 4: Simplify right side
   18,659.25x = 753,090,806.25
5. Step 5: Solve for x
   x = 753,090,806.25/18,659.25
6. Step 6: Final answer
   x = 40,360.19