Finding the Third Proportional to 1,155,819 and 2,511,870

Step by Step Solution

1. Step 1: Write the proportion equation
   1,155,819 : 2,511,870 = 2,511,870 : x
2. Step 2: Convert to fraction form
   1,155,819/2,511,870 = 2,511,870/x
3. Step 3: Cross multiply
   1,155,819x = 2,511,870 × 2,511,870
4. Step 4: Simplify right side
   1,155,819x = 6,309,490,896,900
5. Step 5: Solve for x
   x = 6,309,490,896,900/1,155,819
6. Step 6: Final answer
   x = 5,458,891.83