Finding the Third Proportional to 2,979.75 and 3,528.75

Step by Step Solution

1. Step 1: Write the proportion equation
   2,979.75 : 3,528.75 = 3,528.75 : x
2. Step 2: Convert to fraction form
   2,979.75/3,528.75 = 3,528.75/x
3. Step 3: Cross multiply
   2,979.75x = 3,528.75 × 3,528.75
4. Step 4: Simplify right side
   2,979.75x = 12,452,076.56
5. Step 5: Solve for x
   x = 12,452,076.56/2,979.75
6. Step 6: Final answer
   x = 4,178.90