Finding the Third Proportional to 890,337 and 1,379,488

Step by Step Solution

1. Step 1: Write the proportion equation
   890,337 : 1,379,488 = 1,379,488 : x
2. Step 2: Convert to fraction form
   890,337/1,379,488 = 1,379,488/x
3. Step 3: Cross multiply
   890,337x = 1,379,488 × 1,379,488
4. Step 4: Simplify right side
   890,337x = 1,902,987,142,144
5. Step 5: Solve for x
   x = 1,902,987,142,144/890,337
6. Step 6: Final answer
   x = 2,137,378.48