Finding the Third Proportional to 1,271,718 and 1,920,539

Step by Step Solution

1. Step 1: Write the proportion equation
   1,271,718 : 1,920,539 = 1,920,539 : x
2. Step 2: Convert to fraction form
   1,271,718/1,920,539 = 1,920,539/x
3. Step 3: Cross multiply
   1,271,718x = 1,920,539 × 1,920,539
4. Step 4: Simplify right side
   1,271,718x = 3,688,470,050,521
5. Step 5: Solve for x
   x = 3,688,470,050,521/1,271,718
6. Step 6: Final answer
   x = 2,900,383.62