Finding the Third Proportional to 779,720 and 1,620,736

Step by Step Solution

1. Step 1: Write the proportion equation
   779,720 : 1,620,736 = 1,620,736 : x
2. Step 2: Convert to fraction form
   779,720/1,620,736 = 1,620,736/x
3. Step 3: Cross multiply
   779,720x = 1,620,736 × 1,620,736
4. Step 4: Simplify right side
   779,720x = 2,626,785,181,696
5. Step 5: Solve for x
   x = 2,626,785,181,696/779,720
6. Step 6: Final answer
   x = 3,368,882.65