Finding the Third Proportional to 1,239,876 and 1,915,059

Step by Step Solution

1. Step 1: Write the proportion equation
   1,239,876 : 1,915,059 = 1,915,059 : x
2. Step 2: Convert to fraction form
   1,239,876/1,915,059 = 1,915,059/x
3. Step 3: Cross multiply
   1,239,876x = 1,915,059 × 1,915,059
4. Step 4: Simplify right side
   1,239,876x = 3,667,450,973,481
5. Step 5: Solve for x
   x = 3,667,450,973,481/1,239,876
6. Step 6: Final answer
   x = 2,957,917.54