Finding the Third Proportional to 1,356,872 and 1,993,820

Step by Step Solution

1. Step 1: Write the proportion equation
   1,356,872 : 1,993,820 = 1,993,820 : x
2. Step 2: Convert to fraction form
   1,356,872/1,993,820 = 1,993,820/x
3. Step 3: Cross multiply
   1,356,872x = 1,993,820 × 1,993,820
4. Step 4: Simplify right side
   1,356,872x = 3,975,318,192,400
5. Step 5: Solve for x
   x = 3,975,318,192,400/1,356,872
6. Step 6: Final answer
   x = 2,929,766.55