Finding the Third Proportional to 2,486,317 and 5,355,208

Step by Step Solution

1. Step 1: Write the proportion equation
   2,486,317 : 5,355,208 = 5,355,208 : x
2. Step 2: Convert to fraction form
   2,486,317/5,355,208 = 5,355,208/x
3. Step 3: Cross multiply
   2,486,317x = 5,355,208 × 5,355,208
4. Step 4: Simplify right side
   2,486,317x = 28,678,252,723,264
5. Step 5: Solve for x
   x = 28,678,252,723,264/2,486,317
6. Step 6: Final answer
   x = 11,534,431.34