Finding the Third Proportional to 2,808,138 and 5,476,308

Step by Step Solution

1. Step 1: Write the proportion equation
   2,808,138 : 5,476,308 = 5,476,308 : x
2. Step 2: Convert to fraction form
   2,808,138/5,476,308 = 5,476,308/x
3. Step 3: Cross multiply
   2,808,138x = 5,476,308 × 5,476,308
4. Step 4: Simplify right side
   2,808,138x = 29,989,949,310,864
5. Step 5: Solve for x
   x = 29,989,949,310,864/2,808,138
6. Step 6: Final answer
   x = 10,679,656.52