Finding the Third Proportional to 27,240 and 42,803

Step by Step Solution

1. Step 1: Write the proportion equation
   27,240 : 42,803 = 42,803 : x
2. Step 2: Convert to fraction form
   27,240/42,803 = 42,803/x
3. Step 3: Cross multiply
   27,240x = 42,803 × 42,803
4. Step 4: Simplify right side
   27,240x = 1,832,096,809
5. Step 5: Solve for x
   x = 1,832,096,809/27,240
6. Step 6: Final answer
   x = 67,257.59