Finding the Third Proportional to 1,640,284 and 3,550,136

Step by Step Solution

1. Step 1: Write the proportion equation
   1,640,284 : 3,550,136 = 3,550,136 : x
2. Step 2: Convert to fraction form
   1,640,284/3,550,136 = 3,550,136/x
3. Step 3: Cross multiply
   1,640,284x = 3,550,136 × 3,550,136
4. Step 4: Simplify right side
   1,640,284x = 12,603,465,618,496
5. Step 5: Solve for x
   x = 12,603,465,618,496/1,640,284
6. Step 6: Final answer
   x = 7,683,709.42