Finding the Third Proportional to 779,922 and 1,687,780

Step by Step Solution

1. Step 1: Write the proportion equation
   779,922 : 1,687,780 = 1,687,780 : x
2. Step 2: Convert to fraction form
   779,922/1,687,780 = 1,687,780/x
3. Step 3: Cross multiply
   779,922x = 1,687,780 × 1,687,780
4. Step 4: Simplify right side
   779,922x = 2,848,601,328,400
5. Step 5: Solve for x
   x = 2,848,601,328,400/779,922
6. Step 6: Final answer
   x = 3,652,418.23