Finding the Third Proportional to 3,556.72 and 7,774.10

Step by Step Solution

1. Step 1: Write the proportion equation
   3,556.72 : 7,774.10 = 7,774.10 : x
2. Step 2: Convert to fraction form
   3,556.72/7,774.10 = 7,774.10/x
3. Step 3: Cross multiply
   3,556.72x = 7,774.10 × 7,774.10
4. Step 4: Simplify right side
   3,556.72x = 60,436,655.10
5. Step 5: Solve for x
   x = 60,436,655.10/3,556.72
6. Step 6: Final answer
   x = 16,992.23