Finding the Third Proportional to 155,920.50 and 336,786

Step by Step Solution

1. Step 1: Write the proportion equation
   155,920.50 : 336,786 = 336,786 : x
2. Step 2: Convert to fraction form
   155,920.50/336,786 = 336,786/x
3. Step 3: Cross multiply
   155,920.50x = 336,786 × 336,786
4. Step 4: Simplify right side
   155,920.50x = 113,424,809,796
5. Step 5: Solve for x
   x = 113,424,809,796/155,920.50
6. Step 6: Final answer
   x = 727,452.84