Finding the Third Proportional to 1,919,452 and 4,200,488

Step by Step Solution

1. Step 1: Write the proportion equation
   1,919,452 : 4,200,488 = 4,200,488 : x
2. Step 2: Convert to fraction form
   1,919,452/4,200,488 = 4,200,488/x
3. Step 3: Cross multiply
   1,919,452x = 4,200,488 × 4,200,488
4. Step 4: Simplify right side
   1,919,452x = 17,644,099,438,144
5. Step 5: Solve for x
   x = 17,644,099,438,144/1,919,452
6. Step 6: Final answer
   x = 9,192,258.75