Finding the Third Proportional to 2,618,144 and 5,649,388

Step by Step Solution

1. Step 1: Write the proportion equation
   2,618,144 : 5,649,388 = 5,649,388 : x
2. Step 2: Convert to fraction form
   2,618,144/5,649,388 = 5,649,388/x
3. Step 3: Cross multiply
   2,618,144x = 5,649,388 × 5,649,388
4. Step 4: Simplify right side
   2,618,144x = 31,915,584,774,544
5. Step 5: Solve for x
   x = 31,915,584,774,544/2,618,144
6. Step 6: Final answer
   x = 12,190,156.38