Finding the Third Proportional to 858,276 and 1,298,462

Step by Step Solution

1. Step 1: Write the proportion equation
   858,276 : 1,298,462 = 1,298,462 : x
2. Step 2: Convert to fraction form
   858,276/1,298,462 = 1,298,462/x
3. Step 3: Cross multiply
   858,276x = 1,298,462 × 1,298,462
4. Step 4: Simplify right side
   858,276x = 1,686,003,565,444
5. Step 5: Solve for x
   x = 1,686,003,565,444/858,276
6. Step 6: Final answer
   x = 1,964,407.21