Finding the Third Proportional to 4,261,361 and 9,155,170

Step by Step Solution

1. Step 1: Write the proportion equation
   4,261,361 : 9,155,170 = 9,155,170 : x
2. Step 2: Convert to fraction form
   4,261,361/9,155,170 = 9,155,170/x
3. Step 3: Cross multiply
   4,261,361x = 9,155,170 × 9,155,170
4. Step 4: Simplify right side
   4,261,361x = 83,817,137,728,900
5. Step 5: Solve for x
   x = 83,817,137,728,900/4,261,361
6. Step 6: Final answer
   x = 19,669,100.49