Finding the Third Proportional to 334,080 and 728,458.50

Step by Step Solution

1. Step 1: Write the proportion equation
   334,080 : 728,458.50 = 728,458.50 : x
2. Step 2: Convert to fraction form
   334,080/728,458.50 = 728,458.50/x
3. Step 3: Cross multiply
   334,080x = 728,458.50 × 728,458.50
4. Step 4: Simplify right side
   334,080x = 530,651,786,222.25
5. Step 5: Solve for x
   x = 530,651,786,222.25/334,080
6. Step 6: Final answer
   x = 1,588,397.35