Finding the Third Proportional to 1,805,071 and 3,921,371

Step by Step Solution

1. Step 1: Write the proportion equation
   1,805,071 : 3,921,371 = 3,921,371 : x
2. Step 2: Convert to fraction form
   1,805,071/3,921,371 = 3,921,371/x
3. Step 3: Cross multiply
   1,805,071x = 3,921,371 × 3,921,371
4. Step 4: Simplify right side
   1,805,071x = 15,377,150,519,641
5. Step 5: Solve for x
   x = 15,377,150,519,641/1,805,071
6. Step 6: Final answer
   x = 8,518,861.87