Finding the Third Proportional to 21,816 and 31,942

Step by Step Solution

1. Step 1: Write the proportion equation
   21,816 : 31,942 = 31,942 : x
2. Step 2: Convert to fraction form
   21,816/31,942 = 31,942/x
3. Step 3: Cross multiply
   21,816x = 31,942 × 31,942
4. Step 4: Simplify right side
   21,816x = 1,020,291,364
5. Step 5: Solve for x
   x = 1,020,291,364/21,816
6. Step 6: Final answer
   x = 46,768.03