Finding the Third Proportional to 205,924 and 328,870

Step by Step Solution

1. Step 1: Write the proportion equation
   205,924 : 328,870 = 328,870 : x
2. Step 2: Convert to fraction form
   205,924/328,870 = 328,870/x
3. Step 3: Cross multiply
   205,924x = 328,870 × 328,870
4. Step 4: Simplify right side
   205,924x = 108,155,476,900
5. Step 5: Solve for x
   x = 108,155,476,900/205,924
6. Step 6: Final answer
   x = 525,220.36