Finding the Third Proportional to 42,217 and 91,008

Step by Step Solution

1. Step 1: Write the proportion equation
   42,217 : 91,008 = 91,008 : x
2. Step 2: Convert to fraction form
   42,217/91,008 = 91,008/x
3. Step 3: Cross multiply
   42,217x = 91,008 × 91,008
4. Step 4: Simplify right side
   42,217x = 8,282,456,064
5. Step 5: Solve for x
   x = 8,282,456,064/42,217
6. Step 6: Final answer
   x = 196,187.70