Finding the Third Proportional to 72,443 and 153,607

Step by Step Solution

1. Step 1: Write the proportion equation
   72,443 : 153,607 = 153,607 : x
2. Step 2: Convert to fraction form
   72,443/153,607 = 153,607/x
3. Step 3: Cross multiply
   72,443x = 153,607 × 153,607
4. Step 4: Simplify right side
   72,443x = 23,595,110,449
5. Step 5: Solve for x
   x = 23,595,110,449/72,443
6. Step 6: Final answer
   x = 325,705.87