Finding the Third Proportional to 671,686 and 1,419,178

Step by Step Solution

1. Step 1: Write the proportion equation
   671,686 : 1,419,178 = 1,419,178 : x
2. Step 2: Convert to fraction form
   671,686/1,419,178 = 1,419,178/x
3. Step 3: Cross multiply
   671,686x = 1,419,178 × 1,419,178
4. Step 4: Simplify right side
   671,686x = 2,014,066,195,684
5. Step 5: Solve for x
   x = 2,014,066,195,684/671,686
6. Step 6: Final answer
   x = 2,998,523.41