Finding the Third Proportional to 20,151 and 41,321

Step by Step Solution

1. Step 1: Write the proportion equation
   20,151 : 41,321 = 41,321 : x
2. Step 2: Convert to fraction form
   20,151/41,321 = 41,321/x
3. Step 3: Cross multiply
   20,151x = 41,321 × 41,321
4. Step 4: Simplify right side
   20,151x = 1,707,425,041
5. Step 5: Solve for x
   x = 1,707,425,041/20,151
6. Step 6: Final answer
   x = 84,731.53