Finding the Third Proportional to 31,240 and 70,322

Step by Step Solution

1. Step 1: Write the proportion equation
   31,240 : 70,322 = 70,322 : x
2. Step 2: Convert to fraction form
   31,240/70,322 = 70,322/x
3. Step 3: Cross multiply
   31,240x = 70,322 × 70,322
4. Step 4: Simplify right side
   31,240x = 4,945,183,684
5. Step 5: Solve for x
   x = 4,945,183,684/31,240
6. Step 6: Final answer
   x = 158,296.53