Finding the Third Proportional to 978,774 and 1,378,356

Step by Step Solution

1. Step 1: Write the proportion equation
   978,774 : 1,378,356 = 1,378,356 : x
2. Step 2: Convert to fraction form
   978,774/1,378,356 = 1,378,356/x
3. Step 3: Cross multiply
   978,774x = 1,378,356 × 1,378,356
4. Step 4: Simplify right side
   978,774x = 1,899,865,262,736
5. Step 5: Solve for x
   x = 1,899,865,262,736/978,774
6. Step 6: Final answer
   x = 1,941,066.34