Finding the Third Proportional to 865,128 and 1,849,824

Step by Step Solution

1. Step 1: Write the proportion equation
   865,128 : 1,849,824 = 1,849,824 : x
2. Step 2: Convert to fraction form
   865,128/1,849,824 = 1,849,824/x
3. Step 3: Cross multiply
   865,128x = 1,849,824 × 1,849,824
4. Step 4: Simplify right side
   865,128x = 3,421,848,830,976
5. Step 5: Solve for x
   x = 3,421,848,830,976/865,128
6. Step 6: Final answer
   x = 3,955,309.31