Finding the Third Proportional to 90,432 and 192,528

Step by Step Solution

1. Step 1: Write the proportion equation
   90,432 : 192,528 = 192,528 : x
2. Step 2: Convert to fraction form
   90,432/192,528 = 192,528/x
3. Step 3: Cross multiply
   90,432x = 192,528 × 192,528
4. Step 4: Simplify right side
   90,432x = 37,067,030,784
5. Step 5: Solve for x
   x = 37,067,030,784/90,432
6. Step 6: Final answer
   x = 409,888.43