Finding the Third Proportional to 10,040 and 20,788

Step by Step Solution

1. Step 1: Write the proportion equation
   10,040 : 20,788 = 20,788 : x
2. Step 2: Convert to fraction form
   10,040/20,788 = 20,788/x
3. Step 3: Cross multiply
   10,040x = 20,788 × 20,788
4. Step 4: Simplify right side
   10,040x = 432,140,944
5. Step 5: Solve for x
   x = 432,140,944/10,040
6. Step 6: Final answer
   x = 43,041.93