Finding the Third Proportional to 1,221,862 and 2,555,000

Step by Step Solution

1. Step 1: Write the proportion equation
   1,221,862 : 2,555,000 = 2,555,000 : x
2. Step 2: Convert to fraction form
   1,221,862/2,555,000 = 2,555,000/x
3. Step 3: Cross multiply
   1,221,862x = 2,555,000 × 2,555,000
4. Step 4: Simplify right side
   1,221,862x = 6,528,025,000,000
5. Step 5: Solve for x
   x = 6,528,025,000,000/1,221,862
6. Step 6: Final answer
   x = 5,342,686.00