Finding the Third Proportional to 13,679.25 and 19,559.63

Step by Step Solution

1. Step 1: Write the proportion equation
   13,679.25 : 19,559.63 = 19,559.63 : x
2. Step 2: Convert to fraction form
   13,679.25/19,559.63 = 19,559.63/x
3. Step 3: Cross multiply
   13,679.25x = 19,559.63 × 19,559.63
4. Step 4: Simplify right side
   13,679.25x = 382,578,930.14
5. Step 5: Solve for x
   x = 382,578,930.14/13,679.25
6. Step 6: Final answer
   x = 27,967.83