Finding the Third Proportional to 1,236,621 and 1,967,142

Step by Step Solution

1. Step 1: Write the proportion equation
   1,236,621 : 1,967,142 = 1,967,142 : x
2. Step 2: Convert to fraction form
   1,236,621/1,967,142 = 1,967,142/x
3. Step 3: Cross multiply
   1,236,621x = 1,967,142 × 1,967,142
4. Step 4: Simplify right side
   1,236,621x = 3,869,647,648,164
5. Step 5: Solve for x
   x = 3,869,647,648,164/1,236,621
6. Step 6: Final answer
   x = 3,129,210.69