Finding the Third Proportional to 21,112 and 31,708

Step by Step Solution

1. Step 1: Write the proportion equation
   21,112 : 31,708 = 31,708 : x
2. Step 2: Convert to fraction form
   21,112/31,708 = 31,708/x
3. Step 3: Cross multiply
   21,112x = 31,708 × 31,708
4. Step 4: Simplify right side
   21,112x = 1,005,397,264
5. Step 5: Solve for x
   x = 1,005,397,264/21,112
6. Step 6: Final answer
   x = 47,622.08