Finding the Third Proportional to 42,701 and 68,216

Step by Step Solution

1. Step 1: Write the proportion equation
   42,701 : 68,216 = 68,216 : x
2. Step 2: Convert to fraction form
   42,701/68,216 = 68,216/x
3. Step 3: Cross multiply
   42,701x = 68,216 × 68,216
4. Step 4: Simplify right side
   42,701x = 4,653,422,656
5. Step 5: Solve for x
   x = 4,653,422,656/42,701
6. Step 6: Final answer
   x = 108,976.90