Finding the Third Proportional to 155,854.50 and 340,869

Step by Step Solution

1. Step 1: Write the proportion equation
   155,854.50 : 340,869 = 340,869 : x
2. Step 2: Convert to fraction form
   155,854.50/340,869 = 340,869/x
3. Step 3: Cross multiply
   155,854.50x = 340,869 × 340,869
4. Step 4: Simplify right side
   155,854.50x = 116,191,675,161
5. Step 5: Solve for x
   x = 116,191,675,161/155,854.50
6. Step 6: Final answer
   x = 745,513.77