Finding the Third Proportional to 5,606.72 and 8,706.23

Step by Step Solution

1. Step 1: Write the proportion equation
   5,606.72 : 8,706.23 = 8,706.23 : x
2. Step 2: Convert to fraction form
   5,606.72/8,706.23 = 8,706.23/x
3. Step 3: Cross multiply
   5,606.72x = 8,706.23 × 8,706.23
4. Step 4: Simplify right side
   5,606.72x = 75,798,516.99
5. Step 5: Solve for x
   x = 75,798,516.99/5,606.72
6. Step 6: Final answer
   x = 13,519.23