Finding the Third Proportional to 8,214,144 and 12,769,182

Step by Step Solution

1. Step 1: Write the proportion equation
   8,214,144 : 12,769,182 = 12,769,182 : x
2. Step 2: Convert to fraction form
   8,214,144/12,769,182 = 12,769,182/x
3. Step 3: Cross multiply
   8,214,144x = 12,769,182 × 12,769,182
4. Step 4: Simplify right side
   8,214,144x = 163,052,008,949,124
5. Step 5: Solve for x
   x = 163,052,008,949,124/8,214,144
6. Step 6: Final answer
   x = 19,850,152.24