Finding the Third Proportional to 31,168 and 43,840

Step by Step Solution

1. Step 1: Write the proportion equation
   31,168 : 43,840 = 43,840 : x
2. Step 2: Convert to fraction form
   31,168/43,840 = 43,840/x
3. Step 3: Cross multiply
   31,168x = 43,840 × 43,840
4. Step 4: Simplify right side
   31,168x = 1,921,945,600
5. Step 5: Solve for x
   x = 1,921,945,600/31,168
6. Step 6: Final answer
   x = 61,664.07