Finding the Third Proportional to 1,815,328 and 3,910,740

Step by Step Solution

1. Step 1: Write the proportion equation
   1,815,328 : 3,910,740 = 3,910,740 : x
2. Step 2: Convert to fraction form
   1,815,328/3,910,740 = 3,910,740/x
3. Step 3: Cross multiply
   1,815,328x = 3,910,740 × 3,910,740
4. Step 4: Simplify right side
   1,815,328x = 15,293,887,347,600
5. Step 5: Solve for x
   x = 15,293,887,347,600/1,815,328
6. Step 6: Final answer
   x = 8,424,861.70