Finding the Third Proportional to 799,764 and 1,689,432

Step by Step Solution

1. Step 1: Write the proportion equation
   799,764 : 1,689,432 = 1,689,432 : x
2. Step 2: Convert to fraction form
   799,764/1,689,432 = 1,689,432/x
3. Step 3: Cross multiply
   799,764x = 1,689,432 × 1,689,432
4. Step 4: Simplify right side
   799,764x = 2,854,180,482,624
5. Step 5: Solve for x
   x = 2,854,180,482,624/799,764
6. Step 6: Final answer
   x = 3,568,778.39