Finding the Third Proportional to 2,145,986 and 3,219,235

Step by Step Solution

1. Step 1: Write the proportion equation
   2,145,986 : 3,219,235 = 3,219,235 : x
2. Step 2: Convert to fraction form
   2,145,986/3,219,235 = 3,219,235/x
3. Step 3: Cross multiply
   2,145,986x = 3,219,235 × 3,219,235
4. Step 4: Simplify right side
   2,145,986x = 10,363,473,985,225
5. Step 5: Solve for x
   x = 10,363,473,985,225/2,145,986
6. Step 6: Final answer
   x = 4,829,236.53