Finding the Third Proportional to 778,763 and 1,673,869

Step by Step Solution

1. Step 1: Write the proportion equation
   778,763 : 1,673,869 = 1,673,869 : x
2. Step 2: Convert to fraction form
   778,763/1,673,869 = 1,673,869/x
3. Step 3: Cross multiply
   778,763x = 1,673,869 × 1,673,869
4. Step 4: Simplify right side
   778,763x = 2,801,837,429,161
5. Step 5: Solve for x
   x = 2,801,837,429,161/778,763
6. Step 6: Final answer
   x = 3,597,805.02