Finding the Third Proportional to 778,587 and 1,673,556

Step by Step Solution

1. Step 1: Write the proportion equation
   778,587 : 1,673,556 = 1,673,556 : x
2. Step 2: Convert to fraction form
   778,587/1,673,556 = 1,673,556/x
3. Step 3: Cross multiply
   778,587x = 1,673,556 × 1,673,556
4. Step 4: Simplify right side
   778,587x = 2,800,789,685,136
5. Step 5: Solve for x
   x = 2,800,789,685,136/778,587
6. Step 6: Final answer
   x = 3,597,272.60