Finding the Third Proportional to 27,249 and 42,818

Step by Step Solution

1. Step 1: Write the proportion equation
   27,249 : 42,818 = 42,818 : x
2. Step 2: Convert to fraction form
   27,249/42,818 = 42,818/x
3. Step 3: Cross multiply
   27,249x = 42,818 × 42,818
4. Step 4: Simplify right side
   27,249x = 1,833,381,124
5. Step 5: Solve for x
   x = 1,833,381,124/27,249
6. Step 6: Final answer
   x = 67,282.51