Finding the Third Proportional to 8,445.94 and 12,556.69

Step by Step Solution

1. Step 1: Write the proportion equation
   8,445.94 : 12,556.69 = 12,556.69 : x
2. Step 2: Convert to fraction form
   8,445.94/12,556.69 = 12,556.69/x
3. Step 3: Cross multiply
   8,445.94x = 12,556.69 × 12,556.69
4. Step 4: Simplify right side
   8,445.94x = 157,670,400.97
5. Step 5: Solve for x
   x = 157,670,400.97/8,445.94
6. Step 6: Final answer
   x = 18,668.19