Finding the Third Proportional to 1,913,344 and 4,199,872

Step by Step Solution

1. Step 1: Write the proportion equation
   1,913,344 : 4,199,872 = 4,199,872 : x
2. Step 2: Convert to fraction form
   1,913,344/4,199,872 = 4,199,872/x
3. Step 3: Cross multiply
   1,913,344x = 4,199,872 × 4,199,872
4. Step 4: Simplify right side
   1,913,344x = 17,638,924,816,384
5. Step 5: Solve for x
   x = 17,638,924,816,384/1,913,344
6. Step 6: Final answer
   x = 9,218,898.86