Finding the Third Proportional to 9,407,384 and 19,945,176

Step by Step Solution

1. Step 1: Write the proportion equation
   9,407,384 : 19,945,176 = 19,945,176 : x
2. Step 2: Convert to fraction form
   9,407,384/19,945,176 = 19,945,176/x
3. Step 3: Cross multiply
   9,407,384x = 19,945,176 × 19,945,176
4. Step 4: Simplify right side
   9,407,384x = 397,810,045,670,976
5. Step 5: Solve for x
   x = 397,810,045,670,976/9,407,384
6. Step 6: Final answer
   x = 42,286,999.84