Finding the Third Proportional to 580,780 and 1,245,634

Step by Step Solution

1. Step 1: Write the proportion equation
   580,780 : 1,245,634 = 1,245,634 : x
2. Step 2: Convert to fraction form
   580,780/1,245,634 = 1,245,634/x
3. Step 3: Cross multiply
   580,780x = 1,245,634 × 1,245,634
4. Step 4: Simplify right side
   580,780x = 1,551,604,061,956
5. Step 5: Solve for x
   x = 1,551,604,061,956/580,780
6. Step 6: Final answer
   x = 2,671,586.59