Finding the Third Proportional to 1,851,639 and 4,039,374

Step by Step Solution

1. Step 1: Write the proportion equation
   1,851,639 : 4,039,374 = 4,039,374 : x
2. Step 2: Convert to fraction form
   1,851,639/4,039,374 = 4,039,374/x
3. Step 3: Cross multiply
   1,851,639x = 4,039,374 × 4,039,374
4. Step 4: Simplify right side
   1,851,639x = 16,316,542,311,876
5. Step 5: Solve for x
   x = 16,316,542,311,876/1,851,639
6. Step 6: Final answer
   x = 8,811,945.69