Finding the Third Proportional to 779,042 and 1,173,689

Step by Step Solution

1. Step 1: Write the proportion equation
   779,042 : 1,173,689 = 1,173,689 : x
2. Step 2: Convert to fraction form
   779,042/1,173,689 = 1,173,689/x
3. Step 3: Cross multiply
   779,042x = 1,173,689 × 1,173,689
4. Step 4: Simplify right side
   779,042x = 1,377,545,868,721
5. Step 5: Solve for x
   x = 1,377,545,868,721/779,042
6. Step 6: Final answer
   x = 1,768,256.23