Finding the Third Proportional to 720,580 and 1,076,838

Step by Step Solution

1. Step 1: Write the proportion equation
   720,580 : 1,076,838 = 1,076,838 : x
2. Step 2: Convert to fraction form
   720,580/1,076,838 = 1,076,838/x
3. Step 3: Cross multiply
   720,580x = 1,076,838 × 1,076,838
4. Step 4: Simplify right side
   720,580x = 1,159,580,078,244
5. Step 5: Solve for x
   x = 1,159,580,078,244/720,580
6. Step 6: Final answer
   x = 1,609,231.56