Finding the Third Proportional to 9,613.69 and 19,992.66

Step by Step Solution

1. Step 1: Write the proportion equation
   9,613.69 : 19,992.66 = 19,992.66 : x
2. Step 2: Convert to fraction form
   9,613.69/19,992.66 = 19,992.66/x
3. Step 3: Cross multiply
   9,613.69x = 19,992.66 × 19,992.66
4. Step 4: Simplify right side
   9,613.69x = 399,706,303.93
5. Step 5: Solve for x
   x = 399,706,303.93/9,613.69
6. Step 6: Final answer
   x = 41,576.79