Finding the Third Proportional to 442,198 and 1,039,432

Step by Step Solution

1. Step 1: Write the proportion equation
   442,198 : 1,039,432 = 1,039,432 : x
2. Step 2: Convert to fraction form
   442,198/1,039,432 = 1,039,432/x
3. Step 3: Cross multiply
   442,198x = 1,039,432 × 1,039,432
4. Step 4: Simplify right side
   442,198x = 1,080,418,882,624
5. Step 5: Solve for x
   x = 1,080,418,882,624/442,198
6. Step 6: Final answer
   x = 2,443,292.11