Finding the Third Proportional to 20,761 and 31,357

Step by Step Solution

1. Step 1: Write the proportion equation
   20,761 : 31,357 = 31,357 : x
2. Step 2: Convert to fraction form
   20,761/31,357 = 31,357/x
3. Step 3: Cross multiply
   20,761x = 31,357 × 31,357
4. Step 4: Simplify right side
   20,761x = 983,261,449
5. Step 5: Solve for x
   x = 983,261,449/20,761
6. Step 6: Final answer
   x = 47,360.99