Finding the Third Proportional to 1,778,274 and 2,758,644

Step by Step Solution

1. Step 1: Write the proportion equation
   1,778,274 : 2,758,644 = 2,758,644 : x
2. Step 2: Convert to fraction form
   1,778,274/2,758,644 = 2,758,644/x
3. Step 3: Cross multiply
   1,778,274x = 2,758,644 × 2,758,644
4. Step 4: Simplify right side
   1,778,274x = 7,610,116,718,736
5. Step 5: Solve for x
   x = 7,610,116,718,736/1,778,274
6. Step 6: Final answer
   x = 4,279,496.14