Finding the Third Proportional to 156,205.50 and 340,680

Step by Step Solution

1. Step 1: Write the proportion equation
   156,205.50 : 340,680 = 340,680 : x
2. Step 2: Convert to fraction form
   156,205.50/340,680 = 340,680/x
3. Step 3: Cross multiply
   156,205.50x = 340,680 × 340,680
4. Step 4: Simplify right side
   156,205.50x = 116,062,862,400
5. Step 5: Solve for x
   x = 116,062,862,400/156,205.50
6. Step 6: Final answer
   x = 743,013.93