Finding the Third Proportional to 376.25 and 778.72

Step by Step Solution

1. Step 1: Write the proportion equation
   376.25 : 778.72 = 778.72 : x
2. Step 2: Convert to fraction form
   376.25/778.72 = 778.72/x
3. Step 3: Cross multiply
   376.25x = 778.72 × 778.72
4. Step 4: Simplify right side
   376.25x = 606,397.57
5. Step 5: Solve for x
   x = 606,397.57/376.25
6. Step 6: Final answer
   x = 1,611.70