Finding the Third Proportional to 155,227 and 339,512.50

Step by Step Solution

1. Step 1: Write the proportion equation
   155,227 : 339,512.50 = 339,512.50 : x
2. Step 2: Convert to fraction form
   155,227/339,512.50 = 339,512.50/x
3. Step 3: Cross multiply
   155,227x = 339,512.50 × 339,512.50
4. Step 4: Simplify right side
   155,227x = 115,268,737,656.25
5. Step 5: Solve for x
   x = 115,268,737,656.25/155,227
6. Step 6: Final answer
   x = 742,581.75