Finding the Third Proportional to 1,284.05 and 2,768.91

Step by Step Solution

1. Step 1: Write the proportion equation
   1,284.05 : 2,768.91 = 2,768.91 : x
2. Step 2: Convert to fraction form
   1,284.05/2,768.91 = 2,768.91/x
3. Step 3: Cross multiply
   1,284.05x = 2,768.91 × 2,768.91
4. Step 4: Simplify right side
   1,284.05x = 7,666,841.82
5. Step 5: Solve for x
   x = 7,666,841.82/1,284.05
6. Step 6: Final answer
   x = 5,970.84