Finding the Third Proportional to 774,212 and 1,667,072

Step by Step Solution

1. Step 1: Write the proportion equation
   774,212 : 1,667,072 = 1,667,072 : x
2. Step 2: Convert to fraction form
   774,212/1,667,072 = 1,667,072/x
3. Step 3: Cross multiply
   774,212x = 1,667,072 × 1,667,072
4. Step 4: Simplify right side
   774,212x = 2,779,129,053,184
5. Step 5: Solve for x
   x = 2,779,129,053,184/774,212
6. Step 6: Final answer
   x = 3,589,622.81