Finding the Third Proportional to 80,300.50 and 172,934

Step by Step Solution

1. Step 1: Write the proportion equation
   80,300.50 : 172,934 = 172,934 : x
2. Step 2: Convert to fraction form
   80,300.50/172,934 = 172,934/x
3. Step 3: Cross multiply
   80,300.50x = 172,934 × 172,934
4. Step 4: Simplify right side
   80,300.50x = 29,906,168,356
5. Step 5: Solve for x
   x = 29,906,168,356/80,300.50
6. Step 6: Final answer
   x = 372,428.17