Finding the Third Proportional to 2,188,308 and 3,515,997

Step by Step Solution

1. Step 1: Write the proportion equation
   2,188,308 : 3,515,997 = 3,515,997 : x
2. Step 2: Convert to fraction form
   2,188,308/3,515,997 = 3,515,997/x
3. Step 3: Cross multiply
   2,188,308x = 3,515,997 × 3,515,997
4. Step 4: Simplify right side
   2,188,308x = 12,362,234,904,009
5. Step 5: Solve for x
   x = 12,362,234,904,009/2,188,308
6. Step 6: Final answer
   x = 5,649,220.72