Finding the Third Proportional to 72,345 and 150,234

Step by Step Solution

1. Step 1: Write the proportion equation
   72,345 : 150,234 = 150,234 : x
2. Step 2: Convert to fraction form
   72,345/150,234 = 150,234/x
3. Step 3: Cross multiply
   72,345x = 150,234 × 150,234
4. Step 4: Simplify right side
   72,345x = 22,570,254,756
5. Step 5: Solve for x
   x = 22,570,254,756/72,345
6. Step 6: Final answer
   x = 311,980.85