Finding the Third Proportional to 27,317.25 and 42,859.13

Step by Step Solution

1. Step 1: Write the proportion equation
   27,317.25 : 42,859.13 = 42,859.13 : x
2. Step 2: Convert to fraction form
   27,317.25/42,859.13 = 42,859.13/x
3. Step 3: Cross multiply
   27,317.25x = 42,859.13 × 42,859.13
4. Step 4: Simplify right side
   27,317.25x = 1,836,904,595.77
5. Step 5: Solve for x
   x = 1,836,904,595.77/27,317.25
6. Step 6: Final answer
   x = 67,243.39