Finding the Third Proportional to 598,869 and 874,939.50

Step by Step Solution

1. Step 1: Write the proportion equation
   598,869 : 874,939.50 = 874,939.50 : x
2. Step 2: Convert to fraction form
   598,869/874,939.50 = 874,939.50/x
3. Step 3: Cross multiply
   598,869x = 874,939.50 × 874,939.50
4. Step 4: Simplify right side
   598,869x = 765,519,128,660.25
5. Step 5: Solve for x
   x = 765,519,128,660.25/598,869
6. Step 6: Final answer
   x = 1,278,274.76