Finding the Third Proportional to 5,219,708 and 7,985,570

Step by Step Solution

1. Step 1: Write the proportion equation
   5,219,708 : 7,985,570 = 7,985,570 : x
2. Step 2: Convert to fraction form
   5,219,708/7,985,570 = 7,985,570/x
3. Step 3: Cross multiply
   5,219,708x = 7,985,570 × 7,985,570
4. Step 4: Simplify right side
   5,219,708x = 63,769,328,224,900
5. Step 5: Solve for x
   x = 63,769,328,224,900/5,219,708
6. Step 6: Final answer
   x = 12,217,029.81