Finding the Third Proportional to 583,510 and 1,256,300

Step by Step Solution

1. Step 1: Write the proportion equation
   583,510 : 1,256,300 = 1,256,300 : x
2. Step 2: Convert to fraction form
   583,510/1,256,300 = 1,256,300/x
3. Step 3: Cross multiply
   583,510x = 1,256,300 × 1,256,300
4. Step 4: Simplify right side
   583,510x = 1,578,289,690,000
5. Step 5: Solve for x
   x = 1,578,289,690,000/583,510
6. Step 6: Final answer
   x = 2,704,820.29