Finding the Third Proportional to 3,091.92 and 3,507.05

Step by Step Solution

1. Step 1: Write the proportion equation
   3,091.92 : 3,507.05 = 3,507.05 : x
2. Step 2: Convert to fraction form
   3,091.92/3,507.05 = 3,507.05/x
3. Step 3: Cross multiply
   3,091.92x = 3,507.05 × 3,507.05
4. Step 4: Simplify right side
   3,091.92x = 12,299,377.78
5. Step 5: Solve for x
   x = 12,299,377.78/3,091.92
6. Step 6: Final answer
   x = 3,977.91