Finding the Third Proportional to 40,907.50 and 55,245

Step by Step Solution

1. Step 1: Write the proportion equation
   40,907.50 : 55,245 = 55,245 : x
2. Step 2: Convert to fraction form
   40,907.50/55,245 = 55,245/x
3. Step 3: Cross multiply
   40,907.50x = 55,245 × 55,245
4. Step 4: Simplify right side
   40,907.50x = 3,052,010,025
5. Step 5: Solve for x
   x = 3,052,010,025/40,907.50
6. Step 6: Final answer
   x = 74,607.59