Finding the Third Proportional to 3,430,212 and 5,042,556

Step by Step Solution

1. Step 1: Write the proportion equation
   3,430,212 : 5,042,556 = 5,042,556 : x
2. Step 2: Convert to fraction form
   3,430,212/5,042,556 = 5,042,556/x
3. Step 3: Cross multiply
   3,430,212x = 5,042,556 × 5,042,556
4. Step 4: Simplify right side
   3,430,212x = 25,427,371,013,136
5. Step 5: Solve for x
   x = 25,427,371,013,136/3,430,212
6. Step 6: Final answer
   x = 7,412,769.54