Finding the Third Proportional to 18,890 and 41,404

Step by Step Solution

1. Step 1: Write the proportion equation
   18,890 : 41,404 = 41,404 : x
2. Step 2: Convert to fraction form
   18,890/41,404 = 41,404/x
3. Step 3: Cross multiply
   18,890x = 41,404 × 41,404
4. Step 4: Simplify right side
   18,890x = 1,714,291,216
5. Step 5: Solve for x
   x = 1,714,291,216/18,890
6. Step 6: Final answer
   x = 90,751.26