Finding the Third Proportional to 155,449.50 and 340,050

Step by Step Solution

1. Step 1: Write the proportion equation
   155,449.50 : 340,050 = 340,050 : x
2. Step 2: Convert to fraction form
   155,449.50/340,050 = 340,050/x
3. Step 3: Cross multiply
   155,449.50x = 340,050 × 340,050
4. Step 4: Simplify right side
   155,449.50x = 115,634,002,500
5. Step 5: Solve for x
   x = 115,634,002,500/155,449.50
6. Step 6: Final answer
   x = 743,868.60