Finding the Third Proportional to 18,404.25 and 39,722.63

Step by Step Solution

1. Step 1: Write the proportion equation
   18,404.25 : 39,722.63 = 39,722.63 : x
2. Step 2: Convert to fraction form
   18,404.25/39,722.63 = 39,722.63/x
3. Step 3: Cross multiply
   18,404.25x = 39,722.63 × 39,722.63
4. Step 4: Simplify right side
   18,404.25x = 1,577,886,936.89
5. Step 5: Solve for x
   x = 1,577,886,936.89/18,404.25
6. Step 6: Final answer
   x = 85,734.92