Finding the Third Proportional to 2,289,420 and 4,521,219

Step by Step Solution

1. Step 1: Write the proportion equation
   2,289,420 : 4,521,219 = 4,521,219 : x
2. Step 2: Convert to fraction form
   2,289,420/4,521,219 = 4,521,219/x
3. Step 3: Cross multiply
   2,289,420x = 4,521,219 × 4,521,219
4. Step 4: Simplify right side
   2,289,420x = 20,441,421,245,961
5. Step 5: Solve for x
   x = 20,441,421,245,961/2,289,420
6. Step 6: Final answer
   x = 8,928,646.23