Finding the Third Proportional to 90,612 and 187,596

Step by Step Solution

1. Step 1: Write the proportion equation
   90,612 : 187,596 = 187,596 : x
2. Step 2: Convert to fraction form
   90,612/187,596 = 187,596/x
3. Step 3: Cross multiply
   90,612x = 187,596 × 187,596
4. Step 4: Simplify right side
   90,612x = 35,192,259,216
5. Step 5: Solve for x
   x = 35,192,259,216/90,612
6. Step 6: Final answer
   x = 388,384.09