Finding the Third Proportional to 42,255 and 65,205

Step by Step Solution

1. Step 1: Write the proportion equation
   42,255 : 65,205 = 65,205 : x
2. Step 2: Convert to fraction form
   42,255/65,205 = 65,205/x
3. Step 3: Cross multiply
   42,255x = 65,205 × 65,205
4. Step 4: Simplify right side
   42,255x = 4,251,692,025
5. Step 5: Solve for x
   x = 4,251,692,025/42,255
6. Step 6: Final answer
   x = 100,619.86