Finding the Third Proportional to 30,219.75 and 42,481.13

Step by Step Solution

1. Step 1: Write the proportion equation
   30,219.75 : 42,481.13 = 42,481.13 : x
2. Step 2: Convert to fraction form
   30,219.75/42,481.13 = 42,481.13/x
3. Step 3: Cross multiply
   30,219.75x = 42,481.13 × 42,481.13
4. Step 4: Simplify right side
   30,219.75x = 1,804,645,981.27
5. Step 5: Solve for x
   x = 1,804,645,981.27/30,219.75
6. Step 6: Final answer
   x = 59,717.44