Finding the Third Proportional to 1,408.75 and 3,012.94

Step by Step Solution

1. Step 1: Write the proportion equation
   1,408.75 : 3,012.94 = 3,012.94 : x
2. Step 2: Convert to fraction form
   1,408.75/3,012.94 = 3,012.94/x
3. Step 3: Cross multiply
   1,408.75x = 3,012.94 × 3,012.94
4. Step 4: Simplify right side
   1,408.75x = 9,077,792.38
5. Step 5: Solve for x
   x = 9,077,792.38/1,408.75
6. Step 6: Final answer
   x = 6,443.86