Finding the Third Proportional to 2,215,788 and 4,819,803

Step by Step Solution

1. Step 1: Write the proportion equation
   2,215,788 : 4,819,803 = 4,819,803 : x
2. Step 2: Convert to fraction form
   2,215,788/4,819,803 = 4,819,803/x
3. Step 3: Cross multiply
   2,215,788x = 4,819,803 × 4,819,803
4. Step 4: Simplify right side
   2,215,788x = 23,230,500,958,809
5. Step 5: Solve for x
   x = 23,230,500,958,809/2,215,788
6. Step 6: Final answer
   x = 10,484,081.04