Finding the Third Proportional to 1,515,416 and 3,240,970

Step by Step Solution

1. Step 1: Write the proportion equation
   1,515,416 : 3,240,970 = 3,240,970 : x
2. Step 2: Convert to fraction form
   1,515,416/3,240,970 = 3,240,970/x
3. Step 3: Cross multiply
   1,515,416x = 3,240,970 × 3,240,970
4. Step 4: Simplify right side
   1,515,416x = 10,503,886,540,900
5. Step 5: Solve for x
   x = 10,503,886,540,900/1,515,416
6. Step 6: Final answer
   x = 6,931,355.18