Finding the Third Proportional to 1,503,672 and 3,508,688

Step by Step Solution

1. Step 1: Write the proportion equation
   1,503,672 : 3,508,688 = 3,508,688 : x
2. Step 2: Convert to fraction form
   1,503,672/3,508,688 = 3,508,688/x
3. Step 3: Cross multiply
   1,503,672x = 3,508,688 × 3,508,688
4. Step 4: Simplify right side
   1,503,672x = 12,310,891,481,344
5. Step 5: Solve for x
   x = 12,310,891,481,344/1,503,672
6. Step 6: Final answer
   x = 8,187,218.68