Finding the Third Proportional to 787.76 and 1,704.72

Step by Step Solution

1. Step 1: Write the proportion equation
   787.76 : 1,704.72 = 1,704.72 : x
2. Step 2: Convert to fraction form
   787.76/1,704.72 = 1,704.72/x
3. Step 3: Cross multiply
   787.76x = 1,704.72 × 1,704.72
4. Step 4: Simplify right side
   787.76x = 2,906,079.54
5. Step 5: Solve for x
   x = 2,906,079.54/787.76
6. Step 6: Final answer
   x = 3,689.06