Finding the Third Proportional to 343,260 and 738,175.50

Step by Step Solution

1. Step 1: Write the proportion equation
   343,260 : 738,175.50 = 738,175.50 : x
2. Step 2: Convert to fraction form
   343,260/738,175.50 = 738,175.50/x
3. Step 3: Cross multiply
   343,260x = 738,175.50 × 738,175.50
4. Step 4: Simplify right side
   343,260x = 544,903,068,800.25
5. Step 5: Solve for x
   x = 544,903,068,800.25/343,260
6. Step 6: Final answer
   x = 1,587,435.38