Finding the Third Proportional to 31,448 and 43,278

Step by Step Solution

1. Step 1: Write the proportion equation
   31,448 : 43,278 = 43,278 : x
2. Step 2: Convert to fraction form
   31,448/43,278 = 43,278/x
3. Step 3: Cross multiply
   31,448x = 43,278 × 43,278
4. Step 4: Simplify right side
   31,448x = 1,872,985,284
5. Step 5: Solve for x
   x = 1,872,985,284/31,448
6. Step 6: Final answer
   x = 59,558.17