Finding the Third Proportional to 858,610 and 1,864,712

Step by Step Solution

1. Step 1: Write the proportion equation
   858,610 : 1,864,712 = 1,864,712 : x
2. Step 2: Convert to fraction form
   858,610/1,864,712 = 1,864,712/x
3. Step 3: Cross multiply
   858,610x = 1,864,712 × 1,864,712
4. Step 4: Simplify right side
   858,610x = 3,477,150,842,944
5. Step 5: Solve for x
   x = 3,477,150,842,944/858,610
6. Step 6: Final answer
   x = 4,049,744.17