Finding the Third Proportional to 1,780,600 and 4,199,112

Step by Step Solution

1. Step 1: Write the proportion equation
   1,780,600 : 4,199,112 = 4,199,112 : x
2. Step 2: Convert to fraction form
   1,780,600/4,199,112 = 4,199,112/x
3. Step 3: Cross multiply
   1,780,600x = 4,199,112 × 4,199,112
4. Step 4: Simplify right side
   1,780,600x = 17,632,541,588,544
5. Step 5: Solve for x
   x = 17,632,541,588,544/1,780,600
6. Step 6: Final answer
   x = 9,902,584.29