Finding the Third Proportional to 578,882 and 1,240,834

Step by Step Solution

1. Step 1: Write the proportion equation
   578,882 : 1,240,834 = 1,240,834 : x
2. Step 2: Convert to fraction form
   578,882/1,240,834 = 1,240,834/x
3. Step 3: Cross multiply
   578,882x = 1,240,834 × 1,240,834
4. Step 4: Simplify right side
   578,882x = 1,539,669,015,556
5. Step 5: Solve for x
   x = 1,539,669,015,556/578,882
6. Step 6: Final answer
   x = 2,659,728.61