Finding the Third Proportional to 31,872 and 70,036

Step by Step Solution

1. Step 1: Write the proportion equation
   31,872 : 70,036 = 70,036 : x
2. Step 2: Convert to fraction form
   31,872/70,036 = 70,036/x
3. Step 3: Cross multiply
   31,872x = 70,036 × 70,036
4. Step 4: Simplify right side
   31,872x = 4,905,041,296
5. Step 5: Solve for x
   x = 4,905,041,296/31,872
6. Step 6: Final answer
   x = 153,898.13