Finding the Third Proportional to 1,286,644 and 1,892,536

Step by Step Solution

1. Step 1: Write the proportion equation
   1,286,644 : 1,892,536 = 1,892,536 : x
2. Step 2: Convert to fraction form
   1,286,644/1,892,536 = 1,892,536/x
3. Step 3: Cross multiply
   1,286,644x = 1,892,536 × 1,892,536
4. Step 4: Simplify right side
   1,286,644x = 3,581,692,511,296
5. Step 5: Solve for x
   x = 3,581,692,511,296/1,286,644
6. Step 6: Final answer
   x = 2,783,747.88