Finding the Third Proportional to 4,395,960 and 9,372,570

Step by Step Solution

1. Step 1: Write the proportion equation
   4,395,960 : 9,372,570 = 9,372,570 : x
2. Step 2: Convert to fraction form
   4,395,960/9,372,570 = 9,372,570/x
3. Step 3: Cross multiply
   4,395,960x = 9,372,570 × 9,372,570
4. Step 4: Simplify right side
   4,395,960x = 87,845,068,404,900
5. Step 5: Solve for x
   x = 87,845,068,404,900/4,395,960
6. Step 6: Final answer
   x = 19,983,136.43