Finding the Third Proportional to 4,157,623 and 8,889,790

Step by Step Solution

1. Step 1: Write the proportion equation
   4,157,623 : 8,889,790 = 8,889,790 : x
2. Step 2: Convert to fraction form
   4,157,623/8,889,790 = 8,889,790/x
3. Step 3: Cross multiply
   4,157,623x = 8,889,790 × 8,889,790
4. Step 4: Simplify right side
   4,157,623x = 79,028,366,244,100
5. Step 5: Solve for x
   x = 79,028,366,244,100/4,157,623
6. Step 6: Final answer
   x = 19,008,064.52