Finding the Third Proportional to 1,501.78 and 3,153.42

Step by Step Solution

1. Step 1: Write the proportion equation
   1,501.78 : 3,153.42 = 3,153.42 : x
2. Step 2: Convert to fraction form
   1,501.78/3,153.42 = 3,153.42/x
3. Step 3: Cross multiply
   1,501.78x = 3,153.42 × 3,153.42
4. Step 4: Simplify right side
   1,501.78x = 9,944,078.76
5. Step 5: Solve for x
   x = 9,944,078.76/1,501.78
6. Step 6: Final answer
   x = 6,621.52