Finding the Third Proportional to 13,980 and 19,786

Step by Step Solution

1. Step 1: Write the proportion equation
   13,980 : 19,786 = 19,786 : x
2. Step 2: Convert to fraction form
   13,980/19,786 = 19,786/x
3. Step 3: Cross multiply
   13,980x = 19,786 × 19,786
4. Step 4: Simplify right side
   13,980x = 391,485,796
5. Step 5: Solve for x
   x = 391,485,796/13,980
6. Step 6: Final answer
   x = 28,003.28