Finding the Third Proportional to 72,568 and 153,944.50

Step by Step Solution

1. Step 1: Write the proportion equation
   72,568 : 153,944.50 = 153,944.50 : x
2. Step 2: Convert to fraction form
   72,568/153,944.50 = 153,944.50/x
3. Step 3: Cross multiply
   72,568x = 153,944.50 × 153,944.50
4. Step 4: Simplify right side
   72,568x = 23,698,909,080.25
5. Step 5: Solve for x
   x = 23,698,909,080.25/72,568
6. Step 6: Final answer
   x = 326,575.20