Finding the Third Proportional to 42,417 and 65,079

Step by Step Solution

1. Step 1: Write the proportion equation
   42,417 : 65,079 = 65,079 : x
2. Step 2: Convert to fraction form
   42,417/65,079 = 65,079/x
3. Step 3: Cross multiply
   42,417x = 65,079 × 65,079
4. Step 4: Simplify right side
   42,417x = 4,235,276,241
5. Step 5: Solve for x
   x = 4,235,276,241/42,417
6. Step 6: Final answer
   x = 99,848.56