Finding the Third Proportional to 878,298 and 1,917,244

Step by Step Solution

1. Step 1: Write the proportion equation
   878,298 : 1,917,244 = 1,917,244 : x
2. Step 2: Convert to fraction form
   878,298/1,917,244 = 1,917,244/x
3. Step 3: Cross multiply
   878,298x = 1,917,244 × 1,917,244
4. Step 4: Simplify right side
   878,298x = 3,675,824,555,536
5. Step 5: Solve for x
   x = 3,675,824,555,536/878,298
6. Step 6: Final answer
   x = 4,185,167.85