Finding the Third Proportional to 3,650,139 and 8,449,830

Step by Step Solution

1. Step 1: Write the proportion equation
   3,650,139 : 8,449,830 = 8,449,830 : x
2. Step 2: Convert to fraction form
   3,650,139/8,449,830 = 8,449,830/x
3. Step 3: Cross multiply
   3,650,139x = 8,449,830 × 8,449,830
4. Step 4: Simplify right side
   3,650,139x = 71,399,627,028,900
5. Step 5: Solve for x
   x = 71,399,627,028,900/3,650,139
6. Step 6: Final answer
   x = 19,560,796.73