Finding the Third Proportional to 9,407,404 and 19,945,212

Step by Step Solution

1. Step 1: Write the proportion equation
   9,407,404 : 19,945,212 = 19,945,212 : x
2. Step 2: Convert to fraction form
   9,407,404/19,945,212 = 19,945,212/x
3. Step 3: Cross multiply
   9,407,404x = 19,945,212 × 19,945,212
4. Step 4: Simplify right side
   9,407,404x = 397,811,481,724,944
5. Step 5: Solve for x
   x = 397,811,481,724,944/9,407,404
6. Step 6: Final answer
   x = 42,287,062.59