Finding the Third Proportional to 2,191.50 and 3,279

Step by Step Solution

1. Step 1: Write the proportion equation
   2,191.50 : 3,279 = 3,279 : x
2. Step 2: Convert to fraction form
   2,191.50/3,279 = 3,279/x
3. Step 3: Cross multiply
   2,191.50x = 3,279 × 3,279
4. Step 4: Simplify right side
   2,191.50x = 10,751,841
5. Step 5: Solve for x
   x = 10,751,841/2,191.50
6. Step 6: Final answer
   x = 4,906.16