Finding the Third Proportional to 840,618 and 1,824,126

Step by Step Solution

1. Step 1: Write the proportion equation
   840,618 : 1,824,126 = 1,824,126 : x
2. Step 2: Convert to fraction form
   840,618/1,824,126 = 1,824,126/x
3. Step 3: Cross multiply
   840,618x = 1,824,126 × 1,824,126
4. Step 4: Simplify right side
   840,618x = 3,327,435,663,876
5. Step 5: Solve for x
   x = 3,327,435,663,876/840,618
6. Step 6: Final answer
   x = 3,958,320.74