Finding the Third Proportional to 1,919,544 and 4,200,672

Step by Step Solution

1. Step 1: Write the proportion equation
   1,919,544 : 4,200,672 = 4,200,672 : x
2. Step 2: Convert to fraction form
   1,919,544/4,200,672 = 4,200,672/x
3. Step 3: Cross multiply
   1,919,544x = 4,200,672 × 4,200,672
4. Step 4: Simplify right side
   1,919,544x = 17,645,645,251,584
5. Step 5: Solve for x
   x = 17,645,645,251,584/1,919,544
6. Step 6: Final answer
   x = 9,192,623.48