Finding the Third Proportional to 664,052 and 1,407,906

Step by Step Solution

1. Step 1: Write the proportion equation
   664,052 : 1,407,906 = 1,407,906 : x
2. Step 2: Convert to fraction form
   664,052/1,407,906 = 1,407,906/x
3. Step 3: Cross multiply
   664,052x = 1,407,906 × 1,407,906
4. Step 4: Simplify right side
   664,052x = 1,982,199,304,836
5. Step 5: Solve for x
   x = 1,982,199,304,836/664,052
6. Step 6: Final answer
   x = 2,985,006.15