Finding the Third Proportional to 158,894 and 328,786

Step by Step Solution

1. Step 1: Write the proportion equation
   158,894 : 328,786 = 328,786 : x
2. Step 2: Convert to fraction form
   158,894/328,786 = 328,786/x
3. Step 3: Cross multiply
   158,894x = 328,786 × 328,786
4. Step 4: Simplify right side
   158,894x = 108,100,233,796
5. Step 5: Solve for x
   x = 108,100,233,796/158,894
6. Step 6: Final answer
   x = 680,329.24