Finding the Third Proportional to 450,532 and 629,870

Step by Step Solution

1. Step 1: Write the proportion equation
   450,532 : 629,870 = 629,870 : x
2. Step 2: Convert to fraction form
   450,532/629,870 = 629,870/x
3. Step 3: Cross multiply
   450,532x = 629,870 × 629,870
4. Step 4: Simplify right side
   450,532x = 396,736,216,900
5. Step 5: Solve for x
   x = 396,736,216,900/450,532
6. Step 6: Final answer
   x = 880,594.98