Finding the Third Proportional to 1,027.69 and 1,669.78

Step by Step Solution

1. Step 1: Write the proportion equation
   1,027.69 : 1,669.78 = 1,669.78 : x
2. Step 2: Convert to fraction form
   1,027.69/1,669.78 = 1,669.78/x
3. Step 3: Cross multiply
   1,027.69x = 1,669.78 × 1,669.78
4. Step 4: Simplify right side
   1,027.69x = 2,788,169.42
5. Step 5: Solve for x
   x = 2,788,169.42/1,027.69
6. Step 6: Final answer
   x = 2,713.05