Finding the Third Proportional to 4,455,888 and 9,419,744

Step by Step Solution

1. Step 1: Write the proportion equation
   4,455,888 : 9,419,744 = 9,419,744 : x
2. Step 2: Convert to fraction form
   4,455,888/9,419,744 = 9,419,744/x
3. Step 3: Cross multiply
   4,455,888x = 9,419,744 × 9,419,744
4. Step 4: Simplify right side
   4,455,888x = 88,731,577,025,536
5. Step 5: Solve for x
   x = 88,731,577,025,536/4,455,888
6. Step 6: Final answer
   x = 19,913,331.98