Finding the Third Proportional to 30,224.25 and 64,908.75

Step by Step Solution

1. Step 1: Write the proportion equation
   30,224.25 : 64,908.75 = 64,908.75 : x
2. Step 2: Convert to fraction form
   30,224.25/64,908.75 = 64,908.75/x
3. Step 3: Cross multiply
   30,224.25x = 64,908.75 × 64,908.75
4. Step 4: Simplify right side
   30,224.25x = 4,213,145,826.56
5. Step 5: Solve for x
   x = 4,213,145,826.56/30,224.25
6. Step 6: Final answer
   x = 139,396.21