Finding the Third Proportional to 12,862 and 20,045

Step by Step Solution

1. Step 1: Write the proportion equation
   12,862 : 20,045 = 20,045 : x
2. Step 2: Convert to fraction form
   12,862/20,045 = 20,045/x
3. Step 3: Cross multiply
   12,862x = 20,045 × 20,045
4. Step 4: Simplify right side
   12,862x = 401,802,025
5. Step 5: Solve for x
   x = 401,802,025/12,862
6. Step 6: Final answer
   x = 31,239.47