Finding the Third Proportional to 156,211.50 and 340,692

Step by Step Solution

1. Step 1: Write the proportion equation
   156,211.50 : 340,692 = 340,692 : x
2. Step 2: Convert to fraction form
   156,211.50/340,692 = 340,692/x
3. Step 3: Cross multiply
   156,211.50x = 340,692 × 340,692
4. Step 4: Simplify right side
   156,211.50x = 116,071,038,864
5. Step 5: Solve for x
   x = 116,071,038,864/156,211.50
6. Step 6: Final answer
   x = 743,037.73