Finding the Third Proportional to 543,415.50 and 798,495

Step by Step Solution

1. Step 1: Write the proportion equation
   543,415.50 : 798,495 = 798,495 : x
2. Step 2: Convert to fraction form
   543,415.50/798,495 = 798,495/x
3. Step 3: Cross multiply
   543,415.50x = 798,495 × 798,495
4. Step 4: Simplify right side
   543,415.50x = 637,594,265,025
5. Step 5: Solve for x
   x = 637,594,265,025/543,415.50
6. Step 6: Final answer
   x = 1,173,308.94