Finding the Third Proportional to 88,220 and 192,300

Step by Step Solution

1. Step 1: Write the proportion equation
   88,220 : 192,300 = 192,300 : x
2. Step 2: Convert to fraction form
   88,220/192,300 = 192,300/x
3. Step 3: Cross multiply
   88,220x = 192,300 × 192,300
4. Step 4: Simplify right side
   88,220x = 36,979,290,000
5. Step 5: Solve for x
   x = 36,979,290,000/88,220
6. Step 6: Final answer
   x = 419,171.28