Finding the Third Proportional to 854,760 and 1,328,780

Step by Step Solution

1. Step 1: Write the proportion equation
   854,760 : 1,328,780 = 1,328,780 : x
2. Step 2: Convert to fraction form
   854,760/1,328,780 = 1,328,780/x
3. Step 3: Cross multiply
   854,760x = 1,328,780 × 1,328,780
4. Step 4: Simplify right side
   854,760x = 1,765,656,288,400
5. Step 5: Solve for x
   x = 1,765,656,288,400/854,760
6. Step 6: Final answer
   x = 2,065,674.91