Finding the Third Proportional to 864,021 and 1,885,260

Step by Step Solution

1. Step 1: Write the proportion equation
   864,021 : 1,885,260 = 1,885,260 : x
2. Step 2: Convert to fraction form
   864,021/1,885,260 = 1,885,260/x
3. Step 3: Cross multiply
   864,021x = 1,885,260 × 1,885,260
4. Step 4: Simplify right side
   864,021x = 3,554,205,267,600
5. Step 5: Solve for x
   x = 3,554,205,267,600/864,021
6. Step 6: Final answer
   x = 4,113,563.52