Finding the Third Proportional to 13,405.50 and 31,167

Step by Step Solution

1. Step 1: Write the proportion equation
   13,405.50 : 31,167 = 31,167 : x
2. Step 2: Convert to fraction form
   13,405.50/31,167 = 31,167/x
3. Step 3: Cross multiply
   13,405.50x = 31,167 × 31,167
4. Step 4: Simplify right side
   13,405.50x = 971,381,889
5. Step 5: Solve for x
   x = 971,381,889/13,405.50
6. Step 6: Final answer
   x = 72,461.44