Finding the Third Proportional to 442,863 and 705,017.25

Step by Step Solution

1. Step 1: Write the proportion equation
   442,863 : 705,017.25 = 705,017.25 : x
2. Step 2: Convert to fraction form
   442,863/705,017.25 = 705,017.25/x
3. Step 3: Cross multiply
   442,863x = 705,017.25 × 705,017.25
4. Step 4: Simplify right side
   442,863x = 497,049,322,797.56
5. Step 5: Solve for x
   x = 497,049,322,797.56/442,863
6. Step 6: Final answer
   x = 1,122,354.59