Finding the Third Proportional to 1,277,223 and 1,921,167

Step by Step Solution

1. Step 1: Write the proportion equation
   1,277,223 : 1,921,167 = 1,921,167 : x
2. Step 2: Convert to fraction form
   1,277,223/1,921,167 = 1,921,167/x
3. Step 3: Cross multiply
   1,277,223x = 1,921,167 × 1,921,167
4. Step 4: Simplify right side
   1,277,223x = 3,690,882,641,889
5. Step 5: Solve for x
   x = 3,690,882,641,889/1,277,223
6. Step 6: Final answer
   x = 2,889,771.51