Finding the Third Proportional to 155,530.50 and 340,617

Step by Step Solution

1. Step 1: Write the proportion equation
   155,530.50 : 340,617 = 340,617 : x
2. Step 2: Convert to fraction form
   155,530.50/340,617 = 340,617/x
3. Step 3: Cross multiply
   155,530.50x = 340,617 × 340,617
4. Step 4: Simplify right side
   155,530.50x = 116,019,940,689
5. Step 5: Solve for x
   x = 116,019,940,689/155,530.50
6. Step 6: Final answer
   x = 745,962.63