Finding the Third Proportional to 1,778.25 and 2,789.25

Step by Step Solution

1. Step 1: Write the proportion equation
   1,778.25 : 2,789.25 = 2,789.25 : x
2. Step 2: Convert to fraction form
   1,778.25/2,789.25 = 2,789.25/x
3. Step 3: Cross multiply
   1,778.25x = 2,789.25 × 2,789.25
4. Step 4: Simplify right side
   1,778.25x = 7,779,915.56
5. Step 5: Solve for x
   x = 7,779,915.56/1,778.25
6. Step 6: Final answer
   x = 4,375.04