Finding the Third Proportional to 1,140.38 and 1,510.69

Step by Step Solution

1. Step 1: Write the proportion equation
   1,140.38 : 1,510.69 = 1,510.69 : x
2. Step 2: Convert to fraction form
   1,140.38/1,510.69 = 1,510.69/x
3. Step 3: Cross multiply
   1,140.38x = 1,510.69 × 1,510.69
4. Step 4: Simplify right side
   1,140.38x = 2,282,176.72
5. Step 5: Solve for x
   x = 2,282,176.72/1,140.38
6. Step 6: Final answer
   x = 2,001.25