Finding the Third Proportional to 30,222.75 and 42,485.63

Step by Step Solution

1. Step 1: Write the proportion equation
   30,222.75 : 42,485.63 = 42,485.63 : x
2. Step 2: Convert to fraction form
   30,222.75/42,485.63 = 42,485.63/x
3. Step 3: Cross multiply
   30,222.75x = 42,485.63 × 42,485.63
4. Step 4: Simplify right side
   30,222.75x = 1,805,028,331.64
5. Step 5: Solve for x
   x = 1,805,028,331.64/30,222.75
6. Step 6: Final answer
   x = 59,724.16