Finding the Third Proportional to 578,061 and 1,218,441

Step by Step Solution

1. Step 1: Write the proportion equation
   578,061 : 1,218,441 = 1,218,441 : x
2. Step 2: Convert to fraction form
   578,061/1,218,441 = 1,218,441/x
3. Step 3: Cross multiply
   578,061x = 1,218,441 × 1,218,441
4. Step 4: Simplify right side
   578,061x = 1,484,598,470,481
5. Step 5: Solve for x
   x = 1,484,598,470,481/578,061
6. Step 6: Final answer
   x = 2,568,238.42