Finding the Third Proportional to 581,236 and 1,231,616

Step by Step Solution

1. Step 1: Write the proportion equation
   581,236 : 1,231,616 = 1,231,616 : x
2. Step 2: Convert to fraction form
   581,236/1,231,616 = 1,231,616/x
3. Step 3: Cross multiply
   581,236x = 1,231,616 × 1,231,616
4. Step 4: Simplify right side
   581,236x = 1,516,877,971,456
5. Step 5: Solve for x
   x = 1,516,877,971,456/581,236
6. Step 6: Final answer
   x = 2,609,745.39