Finding the Third Proportional to 578,610 and 1,291,356

Step by Step Solution

1. Step 1: Write the proportion equation
   578,610 : 1,291,356 = 1,291,356 : x
2. Step 2: Convert to fraction form
   578,610/1,291,356 = 1,291,356/x
3. Step 3: Cross multiply
   578,610x = 1,291,356 × 1,291,356
4. Step 4: Simplify right side
   578,610x = 1,667,600,318,736
5. Step 5: Solve for x
   x = 1,667,600,318,736/578,610
6. Step 6: Final answer
   x = 2,882,080.02