Finding the Third Proportional to 1,286,623 and 1,892,505

Step by Step Solution

1. Step 1: Write the proportion equation
   1,286,623 : 1,892,505 = 1,892,505 : x
2. Step 2: Convert to fraction form
   1,286,623/1,892,505 = 1,892,505/x
3. Step 3: Cross multiply
   1,286,623x = 1,892,505 × 1,892,505
4. Step 4: Simplify right side
   1,286,623x = 3,581,575,175,025
5. Step 5: Solve for x
   x = 3,581,575,175,025/1,286,623
6. Step 6: Final answer
   x = 2,783,702.12