Finding the Third Proportional to 1,621,395 and 3,519,702

Step by Step Solution

1. Step 1: Write the proportion equation
   1,621,395 : 3,519,702 = 3,519,702 : x
2. Step 2: Convert to fraction form
   1,621,395/3,519,702 = 3,519,702/x
3. Step 3: Cross multiply
   1,621,395x = 3,519,702 × 3,519,702
4. Step 4: Simplify right side
   1,621,395x = 12,388,302,168,804
5. Step 5: Solve for x
   x = 12,388,302,168,804/1,621,395
6. Step 6: Final answer
   x = 7,640,520.77