Finding the Third Proportional to 865,064.81 and 1,896,721.31

Step by Step Solution

1. Step 1: Write the proportion equation
   865,064.81 : 1,896,721.31 = 1,896,721.31 : x
2. Step 2: Convert to fraction form
   865,064.81/1,896,721.31 = 1,896,721.31/x
3. Step 3: Cross multiply
   865,064.81x = 1,896,721.31 × 1,896,721.31
4. Step 4: Simplify right side
   865,064.81x = 3,597,551,737,291.72
5. Step 5: Solve for x
   x = 3,597,551,737,291.72/865,064.81
6. Step 6: Final answer
   x = 4,158,707.75