Finding the Third Proportional to 1,503,916 and 3,131,760

Step by Step Solution

1. Step 1: Write the proportion equation
   1,503,916 : 3,131,760 = 3,131,760 : x
2. Step 2: Convert to fraction form
   1,503,916/3,131,760 = 3,131,760/x
3. Step 3: Cross multiply
   1,503,916x = 3,131,760 × 3,131,760
4. Step 4: Simplify right side
   1,503,916x = 9,807,920,697,600
5. Step 5: Solve for x
   x = 9,807,920,697,600/1,503,916
6. Step 6: Final answer
   x = 6,521,588.11