Finding the Third Proportional to 8,682.19 and 13,063.78

Step by Step Solution

1. Step 1: Write the proportion equation
   8,682.19 : 13,063.78 = 13,063.78 : x
2. Step 2: Convert to fraction form
   8,682.19/13,063.78 = 13,063.78/x
3. Step 3: Cross multiply
   8,682.19x = 13,063.78 × 13,063.78
4. Step 4: Simplify right side
   8,682.19x = 170,662,380.55
5. Step 5: Solve for x
   x = 170,662,380.55/8,682.19
6. Step 6: Final answer
   x = 19,656.61