Finding the Third Proportional to 21,890 and 32,856

Step by Step Solution

1. Step 1: Write the proportion equation
   21,890 : 32,856 = 32,856 : x
2. Step 2: Convert to fraction form
   21,890/32,856 = 32,856/x
3. Step 3: Cross multiply
   21,890x = 32,856 × 32,856
4. Step 4: Simplify right side
   21,890x = 1,079,516,736
5. Step 5: Solve for x
   x = 1,079,516,736/21,890
6. Step 6: Final answer
   x = 49,315.52