Finding the Third Proportional to 79,485 and 172,775.25

Step by Step Solution

1. Step 1: Write the proportion equation
   79,485 : 172,775.25 = 172,775.25 : x
2. Step 2: Convert to fraction form
   79,485/172,775.25 = 172,775.25/x
3. Step 3: Cross multiply
   79,485x = 172,775.25 × 172,775.25
4. Step 4: Simplify right side
   79,485x = 29,851,287,012.56
5. Step 5: Solve for x
   x = 29,851,287,012.56/79,485
6. Step 6: Final answer
   x = 375,558.75