Finding the Third Proportional to 1,818,911 and 3,960,746

Step by Step Solution

1. Step 1: Write the proportion equation
   1,818,911 : 3,960,746 = 3,960,746 : x
2. Step 2: Convert to fraction form
   1,818,911/3,960,746 = 3,960,746/x
3. Step 3: Cross multiply
   1,818,911x = 3,960,746 × 3,960,746
4. Step 4: Simplify right side
   1,818,911x = 15,687,508,876,516
5. Step 5: Solve for x
   x = 15,687,508,876,516/1,818,911
6. Step 6: Final answer
   x = 8,624,670.96