Finding the Third Proportional to 2,991.94 and 3,931.03

Step by Step Solution

1. Step 1: Write the proportion equation
   2,991.94 : 3,931.03 = 3,931.03 : x
2. Step 2: Convert to fraction form
   2,991.94/3,931.03 = 3,931.03/x
3. Step 3: Cross multiply
   2,991.94x = 3,931.03 × 3,931.03
4. Step 4: Simplify right side
   2,991.94x = 15,453,006.69
5. Step 5: Solve for x
   x = 15,453,006.69/2,991.94
6. Step 6: Final answer
   x = 5,164.88