Finding the Third Proportional to 3,046.99 and 5,478.89

Step by Step Solution

1. Step 1: Write the proportion equation
   3,046.99 : 5,478.89 = 5,478.89 : x
2. Step 2: Convert to fraction form
   3,046.99/5,478.89 = 5,478.89/x
3. Step 3: Cross multiply
   3,046.99x = 5,478.89 × 5,478.89
4. Step 4: Simplify right side
   3,046.99x = 30,018,242.48
5. Step 5: Solve for x
   x = 30,018,242.48/3,046.99
6. Step 6: Final answer
   x = 9,851.76