Finding the Third Proportional to 1,203,012 and 2,586,816

Step by Step Solution

1. Step 1: Write the proportion equation
   1,203,012 : 2,586,816 = 2,586,816 : x
2. Step 2: Convert to fraction form
   1,203,012/2,586,816 = 2,586,816/x
3. Step 3: Cross multiply
   1,203,012x = 2,586,816 × 2,586,816
4. Step 4: Simplify right side
   1,203,012x = 6,691,617,017,856
5. Step 5: Solve for x
   x = 6,691,617,017,856/1,203,012
6. Step 6: Final answer
   x = 5,562,385.93