Finding the Third Proportional to 9,515.81 and 13,706.72

Step by Step Solution

1. Step 1: Write the proportion equation
   9,515.81 : 13,706.72 = 13,706.72 : x
2. Step 2: Convert to fraction form
   9,515.81/13,706.72 = 13,706.72/x
3. Step 3: Cross multiply
   9,515.81x = 13,706.72 × 13,706.72
4. Step 4: Simplify right side
   9,515.81x = 187,874,138.89
5. Step 5: Solve for x
   x = 187,874,138.89/9,515.81
6. Step 6: Final answer
   x = 19,743.36