Finding the Third Proportional to 1,991.25 and 3,013.88

Step by Step Solution

1. Step 1: Write the proportion equation
   1,991.25 : 3,013.88 = 3,013.88 : x
2. Step 2: Convert to fraction form
   1,991.25/3,013.88 = 3,013.88/x
3. Step 3: Cross multiply
   1,991.25x = 3,013.88 × 3,013.88
4. Step 4: Simplify right side
   1,991.25x = 9,083,442.52
5. Step 5: Solve for x
   x = 9,083,442.52/1,991.25
6. Step 6: Final answer
   x = 4,561.68