Finding the Third Proportional to 32,928.75 and 72,129.25

Step by Step Solution

1. Step 1: Write the proportion equation
   32,928.75 : 72,129.25 = 72,129.25 : x
2. Step 2: Convert to fraction form
   32,928.75/72,129.25 = 72,129.25/x
3. Step 3: Cross multiply
   32,928.75x = 72,129.25 × 72,129.25
4. Step 4: Simplify right side
   32,928.75x = 5,202,628,705.56
5. Step 5: Solve for x
   x = 5,202,628,705.56/32,928.75
6. Step 6: Final answer
   x = 157,996.54