Finding the Third Proportional to 79,890.47 and 174,080.53

Step by Step Solution

1. Step 1: Write the proportion equation
   79,890.47 : 174,080.53 = 174,080.53 : x
2. Step 2: Convert to fraction form
   79,890.47/174,080.53 = 174,080.53/x
3. Step 3: Cross multiply
   79,890.47x = 174,080.53 × 174,080.53
4. Step 4: Simplify right side
   79,890.47x = 30,304,031,360.28
5. Step 5: Solve for x
   x = 30,304,031,360.28/79,890.47
6. Step 6: Final answer
   x = 379,319.73