Finding the Third Proportional to 1,338.56 and 2,851.69

Step by Step Solution

1. Step 1: Write the proportion equation
   1,338.56 : 2,851.69 = 2,851.69 : x
2. Step 2: Convert to fraction form
   1,338.56/2,851.69 = 2,851.69/x
3. Step 3: Cross multiply
   1,338.56x = 2,851.69 × 2,851.69
4. Step 4: Simplify right side
   1,338.56x = 8,132,121.60
5. Step 5: Solve for x
   x = 8,132,121.60/1,338.56
6. Step 6: Final answer
   x = 6,075.26