Finding the Third Proportional to 1,391,150 and 2,931,718

Step by Step Solution

1. Step 1: Write the proportion equation
   1,391,150 : 2,931,718 = 2,931,718 : x
2. Step 2: Convert to fraction form
   1,391,150/2,931,718 = 2,931,718/x
3. Step 3: Cross multiply
   1,391,150x = 2,931,718 × 2,931,718
4. Step 4: Simplify right side
   1,391,150x = 8,594,970,431,524
5. Step 5: Solve for x
   x = 8,594,970,431,524/1,391,150
6. Step 6: Final answer
   x = 6,178,320.41