Finding the Third Proportional to 7,371 and 10,420.31

Step by Step Solution

1. Step 1: Write the proportion equation
   7,371 : 10,420.31 = 10,420.31 : x
2. Step 2: Convert to fraction form
   7,371/10,420.31 = 10,420.31/x
3. Step 3: Cross multiply
   7,371x = 10,420.31 × 10,420.31
4. Step 4: Simplify right side
   7,371x = 108,582,912.60
5. Step 5: Solve for x
   x = 108,582,912.60/7,371
6. Step 6: Final answer
   x = 14,731.10