Finding the Third Proportional to 5,219,736 and 7,985,610

Step by Step Solution

1. Step 1: Write the proportion equation
   5,219,736 : 7,985,610 = 7,985,610 : x
2. Step 2: Convert to fraction form
   5,219,736/7,985,610 = 7,985,610/x
3. Step 3: Cross multiply
   5,219,736x = 7,985,610 × 7,985,610
4. Step 4: Simplify right side
   5,219,736x = 63,769,967,072,100
5. Step 5: Solve for x
   x = 63,769,967,072,100/5,219,736
6. Step 6: Final answer
   x = 12,217,086.66