Finding the Third Proportional to 677,780 and 1,467,142

Step by Step Solution

1. Step 1: Write the proportion equation
   677,780 : 1,467,142 = 1,467,142 : x
2. Step 2: Convert to fraction form
   677,780/1,467,142 = 1,467,142/x
3. Step 3: Cross multiply
   677,780x = 1,467,142 × 1,467,142
4. Step 4: Simplify right side
   677,780x = 2,152,505,648,164
5. Step 5: Solve for x
   x = 2,152,505,648,164/677,780
6. Step 6: Final answer
   x = 3,175,817.59