Finding the Third Proportional to 1,285,816 and 2,800,220

Step by Step Solution

1. Step 1: Write the proportion equation
   1,285,816 : 2,800,220 = 2,800,220 : x
2. Step 2: Convert to fraction form
   1,285,816/2,800,220 = 2,800,220/x
3. Step 3: Cross multiply
   1,285,816x = 2,800,220 × 2,800,220
4. Step 4: Simplify right side
   1,285,816x = 7,841,232,048,400
5. Step 5: Solve for x
   x = 7,841,232,048,400/1,285,816
6. Step 6: Final answer
   x = 6,098,253.60