Finding the Third Proportional to 1,578,330 and 3,422,250

Step by Step Solution

1. Step 1: Write the proportion equation
   1,578,330 : 3,422,250 = 3,422,250 : x
2. Step 2: Convert to fraction form
   1,578,330/3,422,250 = 3,422,250/x
3. Step 3: Cross multiply
   1,578,330x = 3,422,250 × 3,422,250
4. Step 4: Simplify right side
   1,578,330x = 11,711,795,062,500
5. Step 5: Solve for x
   x = 11,711,795,062,500/1,578,330
6. Step 6: Final answer
   x = 7,420,371.57