Finding the Third Proportional to 1,392.66 and 2,994.56

Step by Step Solution

1. Step 1: Write the proportion equation
   1,392.66 : 2,994.56 = 2,994.56 : x
2. Step 2: Convert to fraction form
   1,392.66/2,994.56 = 2,994.56/x
3. Step 3: Cross multiply
   1,392.66x = 2,994.56 × 2,994.56
4. Step 4: Simplify right side
   1,392.66x = 8,967,404.57
5. Step 5: Solve for x
   x = 8,967,404.57/1,392.66
6. Step 6: Final answer
   x = 6,439.07