Finding the Third Proportional to 1,320.75 and 2,061.56

Step by Step Solution

1. Step 1: Write the proportion equation
   1,320.75 : 2,061.56 = 2,061.56 : x
2. Step 2: Convert to fraction form
   1,320.75/2,061.56 = 2,061.56/x
3. Step 3: Cross multiply
   1,320.75x = 2,061.56 × 2,061.56
4. Step 4: Simplify right side
   1,320.75x = 4,250,039.94
5. Step 5: Solve for x
   x = 4,250,039.94/1,320.75
6. Step 6: Final answer
   x = 3,217.90