Finding the Third Proportional to 1,229,430 and 2,519,556

Step by Step Solution

1. Step 1: Write the proportion equation
   1,229,430 : 2,519,556 = 2,519,556 : x
2. Step 2: Convert to fraction form
   1,229,430/2,519,556 = 2,519,556/x
3. Step 3: Cross multiply
   1,229,430x = 2,519,556 × 2,519,556
4. Step 4: Simplify right side
   1,229,430x = 6,348,162,437,136
5. Step 5: Solve for x
   x = 6,348,162,437,136/1,229,430
6. Step 6: Final answer
   x = 5,163,500.51