Finding the Third Proportional to 21,869 and 31,943

Step by Step Solution

1. Step 1: Write the proportion equation
   21,869 : 31,943 = 31,943 : x
2. Step 2: Convert to fraction form
   21,869/31,943 = 31,943/x
3. Step 3: Cross multiply
   21,869x = 31,943 × 31,943
4. Step 4: Simplify right side
   21,869x = 1,020,355,249
5. Step 5: Solve for x
   x = 1,020,355,249/21,869
6. Step 6: Final answer
   x = 46,657.61