Finding the Third Proportional to 30,222.75 and 42,485.25

Step by Step Solution

1. Step 1: Write the proportion equation
   30,222.75 : 42,485.25 = 42,485.25 : x
2. Step 2: Convert to fraction form
   30,222.75/42,485.25 = 42,485.25/x
3. Step 3: Cross multiply
   30,222.75x = 42,485.25 × 42,485.25
4. Step 4: Simplify right side
   30,222.75x = 1,804,996,467.56
5. Step 5: Solve for x
   x = 1,804,996,467.56/30,222.75
6. Step 6: Final answer
   x = 59,723.10