Finding the Third Proportional to 79,897.50 and 172,253.25

Step by Step Solution

1. Step 1: Write the proportion equation
   79,897.50 : 172,253.25 = 172,253.25 : x
2. Step 2: Convert to fraction form
   79,897.50/172,253.25 = 172,253.25/x
3. Step 3: Cross multiply
   79,897.50x = 172,253.25 × 172,253.25
4. Step 4: Simplify right side
   79,897.50x = 29,671,182,135.56
5. Step 5: Solve for x
   x = 29,671,182,135.56/79,897.50
6. Step 6: Final answer
   x = 371,365.59