Finding the Third Proportional to 4,420,586 and 9,770,272

Step by Step Solution

1. Step 1: Write the proportion equation
   4,420,586 : 9,770,272 = 9,770,272 : x
2. Step 2: Convert to fraction form
   4,420,586/9,770,272 = 9,770,272/x
3. Step 3: Cross multiply
   4,420,586x = 9,770,272 × 9,770,272
4. Step 4: Simplify right side
   4,420,586x = 95,458,214,953,984
5. Step 5: Solve for x
   x = 95,458,214,953,984/4,420,586
6. Step 6: Final answer
   x = 21,594,018.29