Finding the Third Proportional to 80,479.50 and 174,808.50

Step by Step Solution

1. Step 1: Write the proportion equation
   80,479.50 : 174,808.50 = 174,808.50 : x
2. Step 2: Convert to fraction form
   80,479.50/174,808.50 = 174,808.50/x
3. Step 3: Cross multiply
   80,479.50x = 174,808.50 × 174,808.50
4. Step 4: Simplify right side
   80,479.50x = 30,558,011,672.25
5. Step 5: Solve for x
   x = 30,558,011,672.25/80,479.50
6. Step 6: Final answer
   x = 379,699.32