Finding the Third Proportional to 1,503,564 and 3,131,536

Step by Step Solution

1. Step 1: Write the proportion equation
   1,503,564 : 3,131,536 = 3,131,536 : x
2. Step 2: Convert to fraction form
   1,503,564/3,131,536 = 3,131,536/x
3. Step 3: Cross multiply
   1,503,564x = 3,131,536 × 3,131,536
4. Step 4: Simplify right side
   1,503,564x = 9,806,517,719,296
5. Step 5: Solve for x
   x = 9,806,517,719,296/1,503,564
6. Step 6: Final answer
   x = 6,522,181.78