Finding the Third Proportional to 9,407,446 and 19,945,300

Step by Step Solution

1. Step 1: Write the proportion equation
   9,407,446 : 19,945,300 = 19,945,300 : x
2. Step 2: Convert to fraction form
   9,407,446/19,945,300 = 19,945,300/x
3. Step 3: Cross multiply
   9,407,446x = 19,945,300 × 19,945,300
4. Step 4: Simplify right side
   9,407,446x = 397,814,992,090,000
5. Step 5: Solve for x
   x = 397,814,992,090,000/9,407,446
6. Step 6: Final answer
   x = 42,287,246.94