Finding the Third Proportional to 90,072 and 195,528

Step by Step Solution

1. Step 1: Write the proportion equation
   90,072 : 195,528 = 195,528 : x
2. Step 2: Convert to fraction form
   90,072/195,528 = 195,528/x
3. Step 3: Cross multiply
   90,072x = 195,528 × 195,528
4. Step 4: Simplify right side
   90,072x = 38,231,198,784
5. Step 5: Solve for x
   x = 38,231,198,784/90,072
6. Step 6: Final answer
   x = 424,451.54