Finding the Third Proportional to 8,942,830 and 19,397,970

Step by Step Solution

1. Step 1: Write the proportion equation
   8,942,830 : 19,397,970 = 19,397,970 : x
2. Step 2: Convert to fraction form
   8,942,830/19,397,970 = 19,397,970/x
3. Step 3: Cross multiply
   8,942,830x = 19,397,970 × 19,397,970
4. Step 4: Simplify right side
   8,942,830x = 376,281,240,120,900
5. Step 5: Solve for x
   x = 376,281,240,120,900/8,942,830
6. Step 6: Final answer
   x = 42,076,304.72