Finding the Third Proportional to 31,168.50 and 64,173

Step by Step Solution

1. Step 1: Write the proportion equation
   31,168.50 : 64,173 = 64,173 : x
2. Step 2: Convert to fraction form
   31,168.50/64,173 = 64,173/x
3. Step 3: Cross multiply
   31,168.50x = 64,173 × 64,173
4. Step 4: Simplify right side
   31,168.50x = 4,118,173,929
5. Step 5: Solve for x
   x = 4,118,173,929/31,168.50
6. Step 6: Final answer
   x = 132,126.15