Finding the Third Proportional to 2,142,542 and 3,320,247

Step by Step Solution

1. Step 1: Write the proportion equation
   2,142,542 : 3,320,247 = 3,320,247 : x
2. Step 2: Convert to fraction form
   2,142,542/3,320,247 = 3,320,247/x
3. Step 3: Cross multiply
   2,142,542x = 3,320,247 × 3,320,247
4. Step 4: Simplify right side
   2,142,542x = 11,024,040,141,009
5. Step 5: Solve for x
   x = 11,024,040,141,009/2,142,542
6. Step 6: Final answer
   x = 5,145,308.77