Finding the Third Proportional to 1,780,606 and 4,199,127

Step by Step Solution

1. Step 1: Write the proportion equation
   1,780,606 : 4,199,127 = 4,199,127 : x
2. Step 2: Convert to fraction form
   1,780,606/4,199,127 = 4,199,127/x
3. Step 3: Cross multiply
   1,780,606x = 4,199,127 × 4,199,127
4. Step 4: Simplify right side
   1,780,606x = 17,632,667,562,129
5. Step 5: Solve for x
   x = 17,632,667,562,129/1,780,606
6. Step 6: Final answer
   x = 9,902,621.67