Finding the Third Proportional to 80,354.39 and 172,801.83

Step by Step Solution

1. Step 1: Write the proportion equation
   80,354.39 : 172,801.83 = 172,801.83 : x
2. Step 2: Convert to fraction form
   80,354.39/172,801.83 = 172,801.83/x
3. Step 3: Cross multiply
   80,354.39x = 172,801.83 × 172,801.83
4. Step 4: Simplify right side
   80,354.39x = 29,860,471,803.34
5. Step 5: Solve for x
   x = 29,860,471,803.34/80,354.39
6. Step 6: Final answer
   x = 371,609.71