Finding the Third Proportional to 1,211,490 and 2,643,036

Step by Step Solution

1. Step 1: Write the proportion equation
   1,211,490 : 2,643,036 = 2,643,036 : x
2. Step 2: Convert to fraction form
   1,211,490/2,643,036 = 2,643,036/x
3. Step 3: Cross multiply
   1,211,490x = 2,643,036 × 2,643,036
4. Step 4: Simplify right side
   1,211,490x = 6,985,639,297,296
5. Step 5: Solve for x
   x = 6,985,639,297,296/1,211,490
6. Step 6: Final answer
   x = 5,766,155.15