Finding the Third Proportional to 13,393.69 and 15,823.69

Step by Step Solution

1. Step 1: Write the proportion equation
   13,393.69 : 15,823.69 = 15,823.69 : x
2. Step 2: Convert to fraction form
   13,393.69/15,823.69 = 15,823.69/x
3. Step 3: Cross multiply
   13,393.69x = 15,823.69 × 15,823.69
4. Step 4: Simplify right side
   13,393.69x = 250,389,086.10
5. Step 5: Solve for x
   x = 250,389,086.10/13,393.69
6. Step 6: Final answer
   x = 18,694.56