Finding the Third Proportional to 90,008 and 196,968

Step by Step Solution

1. Step 1: Write the proportion equation
   90,008 : 196,968 = 196,968 : x
2. Step 2: Convert to fraction form
   90,008/196,968 = 196,968/x
3. Step 3: Cross multiply
   90,008x = 196,968 × 196,968
4. Step 4: Simplify right side
   90,008x = 38,796,393,024
5. Step 5: Solve for x
   x = 38,796,393,024/90,008
6. Step 6: Final answer
   x = 431,032.72