Finding the Third Proportional to 815,562 and 1,918,858

Step by Step Solution

1. Step 1: Write the proportion equation
   815,562 : 1,918,858 = 1,918,858 : x
2. Step 2: Convert to fraction form
   815,562/1,918,858 = 1,918,858/x
3. Step 3: Cross multiply
   815,562x = 1,918,858 × 1,918,858
4. Step 4: Simplify right side
   815,562x = 3,682,016,024,164
5. Step 5: Solve for x
   x = 3,682,016,024,164/815,562
6. Step 6: Final answer
   x = 4,514,697.87