Finding the Third Proportional to 1,578,285 and 3,478,302

Step by Step Solution

1. Step 1: Write the proportion equation
   1,578,285 : 3,478,302 = 3,478,302 : x
2. Step 2: Convert to fraction form
   1,578,285/3,478,302 = 3,478,302/x
3. Step 3: Cross multiply
   1,578,285x = 3,478,302 × 3,478,302
4. Step 4: Simplify right side
   1,578,285x = 12,098,584,803,204
5. Step 5: Solve for x
   x = 12,098,584,803,204/1,578,285
6. Step 6: Final answer
   x = 7,665,652.78