Finding the Third Proportional to 1,919,448 and 4,200,480

Step by Step Solution

1. Step 1: Write the proportion equation
   1,919,448 : 4,200,480 = 4,200,480 : x
2. Step 2: Convert to fraction form
   1,919,448/4,200,480 = 4,200,480/x
3. Step 3: Cross multiply
   1,919,448x = 4,200,480 × 4,200,480
4. Step 4: Simplify right side
   1,919,448x = 17,644,032,230,400
5. Step 5: Solve for x
   x = 17,644,032,230,400/1,919,448
6. Step 6: Final answer
   x = 9,192,242.89