Finding the Third Proportional to 865,720 and 1,888,896

Step by Step Solution

1. Step 1: Write the proportion equation
   865,720 : 1,888,896 = 1,888,896 : x
2. Step 2: Convert to fraction form
   865,720/1,888,896 = 1,888,896/x
3. Step 3: Cross multiply
   865,720x = 1,888,896 × 1,888,896
4. Step 4: Simplify right side
   865,720x = 3,567,928,098,816
5. Step 5: Solve for x
   x = 3,567,928,098,816/865,720
6. Step 6: Final answer
   x = 4,121,341.89