Finding the Third Proportional to 779,859 and 1,620,990

Step by Step Solution

1. Step 1: Write the proportion equation
   779,859 : 1,620,990 = 1,620,990 : x
2. Step 2: Convert to fraction form
   779,859/1,620,990 = 1,620,990/x
3. Step 3: Cross multiply
   779,859x = 1,620,990 × 1,620,990
4. Step 4: Simplify right side
   779,859x = 2,627,608,580,100
5. Step 5: Solve for x
   x = 2,627,608,580,100/779,859
6. Step 6: Final answer
   x = 3,369,338.02