Finding the Third Proportional to 155,811.75 and 341,269.50

Step by Step Solution

1. Step 1: Write the proportion equation
   155,811.75 : 341,269.50 = 341,269.50 : x
2. Step 2: Convert to fraction form
   155,811.75/341,269.50 = 341,269.50/x
3. Step 3: Cross multiply
   155,811.75x = 341,269.50 × 341,269.50
4. Step 4: Simplify right side
   155,811.75x = 116,464,871,630.25
5. Step 5: Solve for x
   x = 116,464,871,630.25/155,811.75
6. Step 6: Final answer
   x = 747,471.69