Finding the Third Proportional to 9,407,448 and 19,945,305

Step by Step Solution

1. Step 1: Write the proportion equation
   9,407,448 : 19,945,305 = 19,945,305 : x
2. Step 2: Convert to fraction form
   9,407,448/19,945,305 = 19,945,305/x
3. Step 3: Cross multiply
   9,407,448x = 19,945,305 × 19,945,305
4. Step 4: Simplify right side
   9,407,448x = 397,815,191,543,025
5. Step 5: Solve for x
   x = 397,815,191,543,025/9,407,448
6. Step 6: Final answer
   x = 42,287,259.15