Finding the Third Proportional to 20,334 and 31,690

Step by Step Solution

1. Step 1: Write the proportion equation
   20,334 : 31,690 = 31,690 : x
2. Step 2: Convert to fraction form
   20,334/31,690 = 31,690/x
3. Step 3: Cross multiply
   20,334x = 31,690 × 31,690
4. Step 4: Simplify right side
   20,334x = 1,004,256,100
5. Step 5: Solve for x
   x = 1,004,256,100/20,334
6. Step 6: Final answer
   x = 49,388.02