Finding the Third Proportional to 30,555 and 64,185

Step by Step Solution

1. Step 1: Write the proportion equation
   30,555 : 64,185 = 64,185 : x
2. Step 2: Convert to fraction form
   30,555/64,185 = 64,185/x
3. Step 3: Cross multiply
   30,555x = 64,185 × 64,185
4. Step 4: Simplify right side
   30,555x = 4,119,714,225
5. Step 5: Solve for x
   x = 4,119,714,225/30,555
6. Step 6: Final answer
   x = 134,829.46