Finding the Third Proportional to 31,158 and 41,985

Step by Step Solution

1. Step 1: Write the proportion equation
   31,158 : 41,985 = 41,985 : x
2. Step 2: Convert to fraction form
   31,158/41,985 = 41,985/x
3. Step 3: Cross multiply
   31,158x = 41,985 × 41,985
4. Step 4: Simplify right side
   31,158x = 1,762,740,225
5. Step 5: Solve for x
   x = 1,762,740,225/31,158
6. Step 6: Final answer
   x = 56,574.24