Finding the Third Proportional to 145,549.50 and 231,445.50

Step by Step Solution

1. Step 1: Write the proportion equation
   145,549.50 : 231,445.50 = 231,445.50 : x
2. Step 2: Convert to fraction form
   145,549.50/231,445.50 = 231,445.50/x
3. Step 3: Cross multiply
   145,549.50x = 231,445.50 × 231,445.50
4. Step 4: Simplify right side
   145,549.50x = 53,567,019,470.25
5. Step 5: Solve for x
   x = 53,567,019,470.25/145,549.50
6. Step 6: Final answer
   x = 368,033.00