Finding the Third Proportional to 31,621.50 and 70,245

Step by Step Solution

1. Step 1: Write the proportion equation
   31,621.50 : 70,245 = 70,245 : x
2. Step 2: Convert to fraction form
   31,621.50/70,245 = 70,245/x
3. Step 3: Cross multiply
   31,621.50x = 70,245 × 70,245
4. Step 4: Simplify right side
   31,621.50x = 4,934,360,025
5. Step 5: Solve for x
   x = 4,934,360,025/31,621.50
6. Step 6: Final answer
   x = 156,044.46