Finding the Third Proportional to 1,905,212 and 4,109,556

Step by Step Solution

1. Step 1: Write the proportion equation
   1,905,212 : 4,109,556 = 4,109,556 : x
2. Step 2: Convert to fraction form
   1,905,212/4,109,556 = 4,109,556/x
3. Step 3: Cross multiply
   1,905,212x = 4,109,556 × 4,109,556
4. Step 4: Simplify right side
   1,905,212x = 16,888,450,517,136
5. Step 5: Solve for x
   x = 16,888,450,517,136/1,905,212
6. Step 6: Final answer
   x = 8,864,341.88