Finding the Third Proportional to 384,993 and 858,422.81

Step by Step Solution

1. Step 1: Write the proportion equation
   384,993 : 858,422.81 = 858,422.81 : x
2. Step 2: Convert to fraction form
   384,993/858,422.81 = 858,422.81/x
3. Step 3: Cross multiply
   384,993x = 858,422.81 × 858,422.81
4. Step 4: Simplify right side
   384,993x = 736,889,725,020.41
5. Step 5: Solve for x
   x = 736,889,725,020.41/384,993
6. Step 6: Final answer
   x = 1,914,034.09