Finding the Third Proportional to 244,413 and 357,870

Step by Step Solution

1. Step 1: Write the proportion equation
   244,413 : 357,870 = 357,870 : x
2. Step 2: Convert to fraction form
   244,413/357,870 = 357,870/x
3. Step 3: Cross multiply
   244,413x = 357,870 × 357,870
4. Step 4: Simplify right side
   244,413x = 128,070,936,900
5. Step 5: Solve for x
   x = 128,070,936,900/244,413
6. Step 6: Final answer
   x = 523,993.96