Finding the Third Proportional to 20,653 and 31,173

Step by Step Solution

1. Step 1: Write the proportion equation
   20,653 : 31,173 = 31,173 : x
2. Step 2: Convert to fraction form
   20,653/31,173 = 31,173/x
3. Step 3: Cross multiply
   20,653x = 31,173 × 31,173
4. Step 4: Simplify right side
   20,653x = 971,755,929
5. Step 5: Solve for x
   x = 971,755,929/20,653
6. Step 6: Final answer
   x = 47,051.56