Finding the Third Proportional to 1,811,369 and 3,906,486

Step by Step Solution

1. Step 1: Write the proportion equation
   1,811,369 : 3,906,486 = 3,906,486 : x
2. Step 2: Convert to fraction form
   1,811,369/3,906,486 = 3,906,486/x
3. Step 3: Cross multiply
   1,811,369x = 3,906,486 × 3,906,486
4. Step 4: Simplify right side
   1,811,369x = 15,260,632,868,196
5. Step 5: Solve for x
   x = 15,260,632,868,196/1,811,369
6. Step 6: Final answer
   x = 8,424,916.66