Finding the Third Proportional to 644,034 and 1,415,556

Step by Step Solution

1. Step 1: Write the proportion equation
   644,034 : 1,415,556 = 1,415,556 : x
2. Step 2: Convert to fraction form
   644,034/1,415,556 = 1,415,556/x
3. Step 3: Cross multiply
   644,034x = 1,415,556 × 1,415,556
4. Step 4: Simplify right side
   644,034x = 2,003,798,789,136
5. Step 5: Solve for x
   x = 2,003,798,789,136/644,034
6. Step 6: Final answer
   x = 3,111,324.54