Finding the Third Proportional to 83,132.81 and 172,177.69

Step by Step Solution

1. Step 1: Write the proportion equation
   83,132.81 : 172,177.69 = 172,177.69 : x
2. Step 2: Convert to fraction form
   83,132.81/172,177.69 = 172,177.69/x
3. Step 3: Cross multiply
   83,132.81x = 172,177.69 × 172,177.69
4. Step 4: Simplify right side
   83,132.81x = 29,645,156,072.85
5. Step 5: Solve for x
   x = 29,645,156,072.85/83,132.81
6. Step 6: Final answer
   x = 356,599.94