Finding the Third Proportional to 42,272 and 99,968

Step by Step Solution

1. Step 1: Write the proportion equation
   42,272 : 99,968 = 99,968 : x
2. Step 2: Convert to fraction form
   42,272/99,968 = 99,968/x
3. Step 3: Cross multiply
   42,272x = 99,968 × 99,968
4. Step 4: Simplify right side
   42,272x = 9,993,601,024
5. Step 5: Solve for x
   x = 9,993,601,024/42,272
6. Step 6: Final answer
   x = 236,411.83