Finding the Third Proportional to 21,133 and 31,781

Step by Step Solution

1. Step 1: Write the proportion equation
   21,133 : 31,781 = 31,781 : x
2. Step 2: Convert to fraction form
   21,133/31,781 = 31,781/x
3. Step 3: Cross multiply
   21,133x = 31,781 × 31,781
4. Step 4: Simplify right side
   21,133x = 1,010,031,961
5. Step 5: Solve for x
   x = 1,010,031,961/21,133
6. Step 6: Final answer
   x = 47,794.06