Finding the Third Proportional to 1,815,353 and 3,910,791

Step by Step Solution

1. Step 1: Write the proportion equation
   1,815,353 : 3,910,791 = 3,910,791 : x
2. Step 2: Convert to fraction form
   1,815,353/3,910,791 = 3,910,791/x
3. Step 3: Cross multiply
   1,815,353x = 3,910,791 × 3,910,791
4. Step 4: Simplify right side
   1,815,353x = 15,294,286,245,681
5. Step 5: Solve for x
   x = 15,294,286,245,681/1,815,353
6. Step 6: Final answer
   x = 8,424,965.42