Finding the Third Proportional to 776,928 and 1,690,584

Step by Step Solution

1. Step 1: Write the proportion equation
   776,928 : 1,690,584 = 1,690,584 : x
2. Step 2: Convert to fraction form
   776,928/1,690,584 = 1,690,584/x
3. Step 3: Cross multiply
   776,928x = 1,690,584 × 1,690,584
4. Step 4: Simplify right side
   776,928x = 2,858,074,261,056
5. Step 5: Solve for x
   x = 2,858,074,261,056/776,928
6. Step 6: Final answer
   x = 3,678,686.13