Finding the Third Proportional to 155,428.50 and 192,835.50

Step by Step Solution

1. Step 1: Write the proportion equation
   155,428.50 : 192,835.50 = 192,835.50 : x
2. Step 2: Convert to fraction form
   155,428.50/192,835.50 = 192,835.50/x
3. Step 3: Cross multiply
   155,428.50x = 192,835.50 × 192,835.50
4. Step 4: Simplify right side
   155,428.50x = 37,185,530,060.25
5. Step 5: Solve for x
   x = 37,185,530,060.25/155,428.50
6. Step 6: Final answer
   x = 239,245.25