Finding the Third Proportional to 793.69 and 1,636.88

Step by Step Solution

1. Step 1: Write the proportion equation
   793.69 : 1,636.88 = 1,636.88 : x
2. Step 2: Convert to fraction form
   793.69/1,636.88 = 1,636.88/x
3. Step 3: Cross multiply
   793.69x = 1,636.88 × 1,636.88
4. Step 4: Simplify right side
   793.69x = 2,679,359.77
5. Step 5: Solve for x
   x = 2,679,359.77/793.69
6. Step 6: Final answer
   x = 3,375.84