Finding the Third Proportional to 71,800 and 152,240

Step by Step Solution

1. Step 1: Write the proportion equation
   71,800 : 152,240 = 152,240 : x
2. Step 2: Convert to fraction form
   71,800/152,240 = 152,240/x
3. Step 3: Cross multiply
   71,800x = 152,240 × 152,240
4. Step 4: Simplify right side
   71,800x = 23,177,017,600
5. Step 5: Solve for x
   x = 23,177,017,600/71,800
6. Step 6: Final answer
   x = 322,799.69