Finding the Third Proportional to 72,308 and 155,716

Step by Step Solution

1. Step 1: Write the proportion equation
   72,308 : 155,716 = 155,716 : x
2. Step 2: Convert to fraction form
   72,308/155,716 = 155,716/x
3. Step 3: Cross multiply
   72,308x = 155,716 × 155,716
4. Step 4: Simplify right side
   72,308x = 24,247,472,656
5. Step 5: Solve for x
   x = 24,247,472,656/72,308
6. Step 6: Final answer
   x = 335,335.96