Finding the Third Proportional to 1,277,318 and 1,776,009

Step by Step Solution

1. Step 1: Write the proportion equation
   1,277,318 : 1,776,009 = 1,776,009 : x
2. Step 2: Convert to fraction form
   1,277,318/1,776,009 = 1,776,009/x
3. Step 3: Cross multiply
   1,277,318x = 1,776,009 × 1,776,009
4. Step 4: Simplify right side
   1,277,318x = 3,154,207,968,081
5. Step 5: Solve for x
   x = 3,154,207,968,081/1,277,318
6. Step 6: Final answer
   x = 2,469,399.14