Finding the Third Proportional to 17,916 and 31,100

Step by Step Solution

1. Step 1: Write the proportion equation
   17,916 : 31,100 = 31,100 : x
2. Step 2: Convert to fraction form
   17,916/31,100 = 31,100/x
3. Step 3: Cross multiply
   17,916x = 31,100 × 31,100
4. Step 4: Simplify right side
   17,916x = 967,210,000
5. Step 5: Solve for x
   x = 967,210,000/17,916
6. Step 6: Final answer
   x = 53,985.82