Finding the Third Proportional to 1,239,858 and 1,915,035

Step by Step Solution

1. Step 1: Write the proportion equation
   1,239,858 : 1,915,035 = 1,915,035 : x
2. Step 2: Convert to fraction form
   1,239,858/1,915,035 = 1,915,035/x
3. Step 3: Cross multiply
   1,239,858x = 1,915,035 × 1,915,035
4. Step 4: Simplify right side
   1,239,858x = 3,667,359,051,225
5. Step 5: Solve for x
   x = 3,667,359,051,225/1,239,858
6. Step 6: Final answer
   x = 2,957,886.35