Finding the Third Proportional to 543,307.50 and 860,113.69

Step by Step Solution

1. Step 1: Write the proportion equation
   543,307.50 : 860,113.69 = 860,113.69 : x
2. Step 2: Convert to fraction form
   543,307.50/860,113.69 = 860,113.69/x
3. Step 3: Cross multiply
   543,307.50x = 860,113.69 × 860,113.69
4. Step 4: Simplify right side
   543,307.50x = 739,795,555,424.85
5. Step 5: Solve for x
   x = 739,795,555,424.85/543,307.50
6. Step 6: Final answer
   x = 1,361,651.65