Finding the Third Proportional to 785,078 and 1,245,156

Step by Step Solution

1. Step 1: Write the proportion equation
   785,078 : 1,245,156 = 1,245,156 : x
2. Step 2: Convert to fraction form
   785,078/1,245,156 = 1,245,156/x
3. Step 3: Cross multiply
   785,078x = 1,245,156 × 1,245,156
4. Step 4: Simplify right side
   785,078x = 1,550,413,464,336
5. Step 5: Solve for x
   x = 1,550,413,464,336/785,078
6. Step 6: Final answer
   x = 1,974,852.77