Finding the Third Proportional to 1,578,128 and 3,353,084

Step by Step Solution

1. Step 1: Write the proportion equation
   1,578,128 : 3,353,084 = 3,353,084 : x
2. Step 2: Convert to fraction form
   1,578,128/3,353,084 = 3,353,084/x
3. Step 3: Cross multiply
   1,578,128x = 3,353,084 × 3,353,084
4. Step 4: Simplify right side
   1,578,128x = 11,243,172,311,056
5. Step 5: Solve for x
   x = 11,243,172,311,056/1,578,128
6. Step 6: Final answer
   x = 7,124,372.87