Finding the Third Proportional to 442,872 and 705,030

Step by Step Solution

1. Step 1: Write the proportion equation
   442,872 : 705,030 = 705,030 : x
2. Step 2: Convert to fraction form
   442,872/705,030 = 705,030/x
3. Step 3: Cross multiply
   442,872x = 705,030 × 705,030
4. Step 4: Simplify right side
   442,872x = 497,067,300,900
5. Step 5: Solve for x
   x = 497,067,300,900/442,872
6. Step 6: Final answer
   x = 1,122,372.38