Finding the Third Proportional to 13,987.69 and 21,659.27

Step by Step Solution

1. Step 1: Write the proportion equation
   13,987.69 : 21,659.27 = 21,659.27 : x
2. Step 2: Convert to fraction form
   13,987.69/21,659.27 = 21,659.27/x
3. Step 3: Cross multiply
   13,987.69x = 21,659.27 × 21,659.27
4. Step 4: Simplify right side
   13,987.69x = 469,124,125.84
5. Step 5: Solve for x
   x = 469,124,125.84/13,987.69
6. Step 6: Final answer
   x = 33,538.36