Finding the Third Proportional to 12,556.69 and 18,997.03

Step by Step Solution

1. Step 1: Write the proportion equation
   12,556.69 : 18,997.03 = 18,997.03 : x
2. Step 2: Convert to fraction form
   12,556.69/18,997.03 = 18,997.03/x
3. Step 3: Cross multiply
   12,556.69x = 18,997.03 × 18,997.03
4. Step 4: Simplify right side
   12,556.69x = 360,887,196.31
5. Step 5: Solve for x
   x = 360,887,196.31/12,556.69
6. Step 6: Final answer
   x = 28,740.64