Finding the Third Proportional to 9,407,435 and 19,945,279

Step by Step Solution

1. Step 1: Write the proportion equation
   9,407,435 : 19,945,279 = 19,945,279 : x
2. Step 2: Convert to fraction form
   9,407,435/19,945,279 = 19,945,279/x
3. Step 3: Cross multiply
   9,407,435x = 19,945,279 × 19,945,279
4. Step 4: Simplify right side
   9,407,435x = 397,814,154,387,841
5. Step 5: Solve for x
   x = 397,814,154,387,841/9,407,435
6. Step 6: Final answer
   x = 42,287,207.34