Finding the Third Proportional to 6,211.69 and 11,090.67

Step by Step Solution

1. Step 1: Write the proportion equation
   6,211.69 : 11,090.67 = 11,090.67 : x
2. Step 2: Convert to fraction form
   6,211.69/11,090.67 = 11,090.67/x
3. Step 3: Cross multiply
   6,211.69x = 11,090.67 × 11,090.67
4. Step 4: Simplify right side
   6,211.69x = 123,003,002.64
5. Step 5: Solve for x
   x = 123,003,002.64/6,211.69
6. Step 6: Final answer
   x = 19,801.87