Finding the Third Proportional to 9,407,450 and 19,945,310

Step by Step Solution

1. Step 1: Write the proportion equation
   9,407,450 : 19,945,310 = 19,945,310 : x
2. Step 2: Convert to fraction form
   9,407,450/19,945,310 = 19,945,310/x
3. Step 3: Cross multiply
   9,407,450x = 19,945,310 × 19,945,310
4. Step 4: Simplify right side
   9,407,450x = 397,815,390,996,100
5. Step 5: Solve for x
   x = 397,815,390,996,100/9,407,450
6. Step 6: Final answer
   x = 42,287,271.36