Finding the Third Proportional to 155,455.50 and 340,071

Step by Step Solution

1. Step 1: Write the proportion equation
   155,455.50 : 340,071 = 340,071 : x
2. Step 2: Convert to fraction form
   155,455.50/340,071 = 340,071/x
3. Step 3: Cross multiply
   155,455.50x = 340,071 × 340,071
4. Step 4: Simplify right side
   155,455.50x = 115,648,285,041
5. Step 5: Solve for x
   x = 115,648,285,041/155,455.50
6. Step 6: Final answer
   x = 743,931.77