Finding the Third Proportional to 4,259,819 and 9,371,556

Step by Step Solution

1. Step 1: Write the proportion equation
   4,259,819 : 9,371,556 = 9,371,556 : x
2. Step 2: Convert to fraction form
   4,259,819/9,371,556 = 9,371,556/x
3. Step 3: Cross multiply
   4,259,819x = 9,371,556 × 9,371,556
4. Step 4: Simplify right side
   4,259,819x = 87,826,061,861,136
5. Step 5: Solve for x
   x = 87,826,061,861,136/4,259,819
6. Step 6: Final answer
   x = 20,617,322.44