Finding the Third Proportional to 1,503,915 and 3,131,758

Step by Step Solution

1. Step 1: Write the proportion equation
   1,503,915 : 3,131,758 = 3,131,758 : x
2. Step 2: Convert to fraction form
   1,503,915/3,131,758 = 3,131,758/x
3. Step 3: Cross multiply
   1,503,915x = 3,131,758 × 3,131,758
4. Step 4: Simplify right side
   1,503,915x = 9,807,908,170,564
5. Step 5: Solve for x
   x = 9,807,908,170,564/1,503,915
6. Step 6: Final answer
   x = 6,521,584.11