Finding the Third Proportional to 737,580 and 1,139,128

Step by Step Solution

1. Step 1: Write the proportion equation
   737,580 : 1,139,128 = 1,139,128 : x
2. Step 2: Convert to fraction form
   737,580/1,139,128 = 1,139,128/x
3. Step 3: Cross multiply
   737,580x = 1,139,128 × 1,139,128
4. Step 4: Simplify right side
   737,580x = 1,297,612,600,384
5. Step 5: Solve for x
   x = 1,297,612,600,384/737,580
6. Step 6: Final answer
   x = 1,759,283.87