Finding the Third Proportional to 1,578,302 and 3,478,336

Step by Step Solution

1. Step 1: Write the proportion equation
   1,578,302 : 3,478,336 = 3,478,336 : x
2. Step 2: Convert to fraction form
   1,578,302/3,478,336 = 3,478,336/x
3. Step 3: Cross multiply
   1,578,302x = 3,478,336 × 3,478,336
4. Step 4: Simplify right side
   1,578,302x = 12,098,821,328,896
5. Step 5: Solve for x
   x = 12,098,821,328,896/1,578,302
6. Step 6: Final answer
   x = 7,665,720.08