Finding the Third Proportional to 3,656,976 and 5,578,284

Step by Step Solution

1. Step 1: Write the proportion equation
   3,656,976 : 5,578,284 = 5,578,284 : x
2. Step 2: Convert to fraction form
   3,656,976/5,578,284 = 5,578,284/x
3. Step 3: Cross multiply
   3,656,976x = 5,578,284 × 5,578,284
4. Step 4: Simplify right side
   3,656,976x = 31,117,252,384,656
5. Step 5: Solve for x
   x = 31,117,252,384,656/3,656,976
6. Step 6: Final answer
   x = 8,509,011.92