Finding the Third Proportional to 2,115,372 and 3,222,657

Step by Step Solution

1. Step 1: Write the proportion equation
   2,115,372 : 3,222,657 = 3,222,657 : x
2. Step 2: Convert to fraction form
   2,115,372/3,222,657 = 3,222,657/x
3. Step 3: Cross multiply
   2,115,372x = 3,222,657 × 3,222,657
4. Step 4: Simplify right side
   2,115,372x = 10,385,518,139,649
5. Step 5: Solve for x
   x = 10,385,518,139,649/2,115,372
6. Step 6: Final answer
   x = 4,909,546.94