Finding the Third Proportional to 9,702 and 21,131

Step by Step Solution

1. Step 1: Write the proportion equation
   9,702 : 21,131 = 21,131 : x
2. Step 2: Convert to fraction form
   9,702/21,131 = 21,131/x
3. Step 3: Cross multiply
   9,702x = 21,131 × 21,131
4. Step 4: Simplify right side
   9,702x = 446,519,161
5. Step 5: Solve for x
   x = 446,519,161/9,702
6. Step 6: Final answer
   x = 46,023.41