Finding the Third Proportional to 1,290,818 and 2,805,520

Step by Step Solution

1. Step 1: Write the proportion equation
   1,290,818 : 2,805,520 = 2,805,520 : x
2. Step 2: Convert to fraction form
   1,290,818/2,805,520 = 2,805,520/x
3. Step 3: Cross multiply
   1,290,818x = 2,805,520 × 2,805,520
4. Step 4: Simplify right side
   1,290,818x = 7,870,942,470,400
5. Step 5: Solve for x
   x = 7,870,942,470,400/1,290,818
6. Step 6: Final answer
   x = 6,097,639.23