Finding the Third Proportional to 155,431.50 and 340,014

Step by Step Solution

1. Step 1: Write the proportion equation
   155,431.50 : 340,014 = 340,014 : x
2. Step 2: Convert to fraction form
   155,431.50/340,014 = 340,014/x
3. Step 3: Cross multiply
   155,431.50x = 340,014 × 340,014
4. Step 4: Simplify right side
   155,431.50x = 115,609,520,196
5. Step 5: Solve for x
   x = 115,609,520,196/155,431.50
6. Step 6: Final answer
   x = 743,797.24