Finding the Third Proportional to 21,258 and 31,995

Step by Step Solution

1. Step 1: Write the proportion equation
   21,258 : 31,995 = 31,995 : x
2. Step 2: Convert to fraction form
   21,258/31,995 = 31,995/x
3. Step 3: Cross multiply
   21,258x = 31,995 × 31,995
4. Step 4: Simplify right side
   21,258x = 1,023,680,025
5. Step 5: Solve for x
   x = 1,023,680,025/21,258
6. Step 6: Final answer
   x = 48,155.05