Finding the Third Proportional to 30,317.57 and 70,812.67

Step by Step Solution

1. Step 1: Write the proportion equation
   30,317.57 : 70,812.67 = 70,812.67 : x
2. Step 2: Convert to fraction form
   30,317.57/70,812.67 = 70,812.67/x
3. Step 3: Cross multiply
   30,317.57x = 70,812.67 × 70,812.67
4. Step 4: Simplify right side
   30,317.57x = 5,014,433,944.85
5. Step 5: Solve for x
   x = 5,014,433,944.85/30,317.57
6. Step 6: Final answer
   x = 165,396.95