Finding the Third Proportional to 79,030 and 172,262

Step by Step Solution

1. Step 1: Write the proportion equation
   79,030 : 172,262 = 172,262 : x
2. Step 2: Convert to fraction form
   79,030/172,262 = 172,262/x
3. Step 3: Cross multiply
   79,030x = 172,262 × 172,262
4. Step 4: Simplify right side
   79,030x = 29,674,196,644
5. Step 5: Solve for x
   x = 29,674,196,644/79,030
6. Step 6: Final answer
   x = 375,480.15