Finding the Third Proportional to 6,221 and 12,807

Step by Step Solution

1. Step 1: Write the proportion equation
   6,221 : 12,807 = 12,807 : x
2. Step 2: Convert to fraction form
   6,221/12,807 = 12,807/x
3. Step 3: Cross multiply
   6,221x = 12,807 × 12,807
4. Step 4: Simplify right side
   6,221x = 164,019,249
5. Step 5: Solve for x
   x = 164,019,249/6,221
6. Step 6: Final answer
   x = 26,365.42