Finding the Third Proportional to 27,072.75 and 42,433.13

Step by Step Solution

1. Step 1: Write the proportion equation
   27,072.75 : 42,433.13 = 42,433.13 : x
2. Step 2: Convert to fraction form
   27,072.75/42,433.13 = 42,433.13/x
3. Step 3: Cross multiply
   27,072.75x = 42,433.13 × 42,433.13
4. Step 4: Simplify right side
   27,072.75x = 1,800,570,097.27
5. Step 5: Solve for x
   x = 1,800,570,097.27/27,072.75
6. Step 6: Final answer
   x = 66,508.58