Finding the Third Proportional to 158,990.50 and 336,929

Step by Step Solution

1. Step 1: Write the proportion equation
   158,990.50 : 336,929 = 336,929 : x
2. Step 2: Convert to fraction form
   158,990.50/336,929 = 336,929/x
3. Step 3: Cross multiply
   158,990.50x = 336,929 × 336,929
4. Step 4: Simplify right side
   158,990.50x = 113,521,151,041
5. Step 5: Solve for x
   x = 113,521,151,041/158,990.50
6. Step 6: Final answer
   x = 714,012.16