Finding the Third Proportional to 31,607 and 73,170.50

Step by Step Solution

1. Step 1: Write the proportion equation
   31,607 : 73,170.50 = 73,170.50 : x
2. Step 2: Convert to fraction form
   31,607/73,170.50 = 73,170.50/x
3. Step 3: Cross multiply
   31,607x = 73,170.50 × 73,170.50
4. Step 4: Simplify right side
   31,607x = 5,353,922,070.25
5. Step 5: Solve for x
   x = 5,353,922,070.25/31,607
6. Step 6: Final answer
   x = 169,390.39