Finding the Third Proportional to 1,128,866 and 1,729,263

Step by Step Solution

1. Step 1: Write the proportion equation
   1,128,866 : 1,729,263 = 1,729,263 : x
2. Step 2: Convert to fraction form
   1,128,866/1,729,263 = 1,729,263/x
3. Step 3: Cross multiply
   1,128,866x = 1,729,263 × 1,729,263
4. Step 4: Simplify right side
   1,128,866x = 2,990,350,523,169
5. Step 5: Solve for x
   x = 2,990,350,523,169/1,128,866
6. Step 6: Final answer
   x = 2,648,986.26