Finding the Third Proportional to 90,010 and 196,972

Step by Step Solution

1. Step 1: Write the proportion equation
   90,010 : 196,972 = 196,972 : x
2. Step 2: Convert to fraction form
   90,010/196,972 = 196,972/x
3. Step 3: Cross multiply
   90,010x = 196,972 × 196,972
4. Step 4: Simplify right side
   90,010x = 38,797,968,784
5. Step 5: Solve for x
   x = 38,797,968,784/90,010
6. Step 6: Final answer
   x = 431,040.65