Finding the Third Proportional to 80,300.25 and 172,933.50

Step by Step Solution

1. Step 1: Write the proportion equation
   80,300.25 : 172,933.50 = 172,933.50 : x
2. Step 2: Convert to fraction form
   80,300.25/172,933.50 = 172,933.50/x
3. Step 3: Cross multiply
   80,300.25x = 172,933.50 × 172,933.50
4. Step 4: Simplify right side
   80,300.25x = 29,905,995,422.25
5. Step 5: Solve for x
   x = 29,905,995,422.25/80,300.25
6. Step 6: Final answer
   x = 372,427.18