Finding the Third Proportional to 589,012 and 1,281,128

Step by Step Solution

1. Step 1: Write the proportion equation
   589,012 : 1,281,128 = 1,281,128 : x
2. Step 2: Convert to fraction form
   589,012/1,281,128 = 1,281,128/x
3. Step 3: Cross multiply
   589,012x = 1,281,128 × 1,281,128
4. Step 4: Simplify right side
   589,012x = 1,641,288,952,384
5. Step 5: Solve for x
   x = 1,641,288,952,384/589,012
6. Step 6: Final answer
   x = 2,786,511.91