Finding the Third Proportional to 1,289,112 and 2,783,208

Step by Step Solution

1. Step 1: Write the proportion equation
   1,289,112 : 2,783,208 = 2,783,208 : x
2. Step 2: Convert to fraction form
   1,289,112/2,783,208 = 2,783,208/x
3. Step 3: Cross multiply
   1,289,112x = 2,783,208 × 2,783,208
4. Step 4: Simplify right side
   1,289,112x = 7,746,246,771,264
5. Step 5: Solve for x
   x = 7,746,246,771,264/1,289,112
6. Step 6: Final answer
   x = 6,008,978.87