Finding the Third Proportional to 630,620 and 1,383,880

Step by Step Solution

1. Step 1: Write the proportion equation
   630,620 : 1,383,880 = 1,383,880 : x
2. Step 2: Convert to fraction form
   630,620/1,383,880 = 1,383,880/x
3. Step 3: Cross multiply
   630,620x = 1,383,880 × 1,383,880
4. Step 4: Simplify right side
   630,620x = 1,915,123,854,400
5. Step 5: Solve for x
   x = 1,915,123,854,400/630,620
6. Step 6: Final answer
   x = 3,036,890.45