Finding the Third Proportional to 1,510.45 and 3,321.42

Step by Step Solution

1. Step 1: Write the proportion equation
   1,510.45 : 3,321.42 = 3,321.42 : x
2. Step 2: Convert to fraction form
   1,510.45/3,321.42 = 3,321.42/x
3. Step 3: Cross multiply
   1,510.45x = 3,321.42 × 3,321.42
4. Step 4: Simplify right side
   1,510.45x = 11,031,843.27
5. Step 5: Solve for x
   x = 11,031,843.27/1,510.45
6. Step 6: Final answer
   x = 7,303.66