Finding the Third Proportional to 8,942,902 and 19,398,109

Step by Step Solution

1. Step 1: Write the proportion equation
   8,942,902 : 19,398,109 = 19,398,109 : x
2. Step 2: Convert to fraction form
   8,942,902/19,398,109 = 19,398,109/x
3. Step 3: Cross multiply
   8,942,902x = 19,398,109 × 19,398,109
4. Step 4: Simplify right side
   8,942,902x = 376,286,632,775,881
5. Step 5: Solve for x
   x = 376,286,632,775,881/8,942,902
6. Step 6: Final answer
   x = 42,076,568.97