Finding the Third Proportional to 155,359.50 and 340,374

Step by Step Solution

1. Step 1: Write the proportion equation
   155,359.50 : 340,374 = 340,374 : x
2. Step 2: Convert to fraction form
   155,359.50/340,374 = 340,374/x
3. Step 3: Cross multiply
   155,359.50x = 340,374 × 340,374
4. Step 4: Simplify right side
   155,359.50x = 115,854,459,876
5. Step 5: Solve for x
   x = 115,854,459,876/155,359.50
6. Step 6: Final answer
   x = 745,718.54