Finding the Third Proportional to 8,219,448 and 13,090,212

Step by Step Solution

1. Step 1: Write the proportion equation
   8,219,448 : 13,090,212 = 13,090,212 : x
2. Step 2: Convert to fraction form
   8,219,448/13,090,212 = 13,090,212/x
3. Step 3: Cross multiply
   8,219,448x = 13,090,212 × 13,090,212
4. Step 4: Simplify right side
   8,219,448x = 171,353,650,204,944
5. Step 5: Solve for x
   x = 171,353,650,204,944/8,219,448
6. Step 6: Final answer
   x = 20,847,342.81