Finding the Third Proportional to 1,378,802 and 1,985,879

Step by Step Solution

1. Step 1: Write the proportion equation
   1,378,802 : 1,985,879 = 1,985,879 : x
2. Step 2: Convert to fraction form
   1,378,802/1,985,879 = 1,985,879/x
3. Step 3: Cross multiply
   1,378,802x = 1,985,879 × 1,985,879
4. Step 4: Simplify right side
   1,378,802x = 3,943,715,402,641
5. Step 5: Solve for x
   x = 3,943,715,402,641/1,378,802
6. Step 6: Final answer
   x = 2,860,247.81