Finding the Third Proportional to 70,858 and 154,172

Step by Step Solution

1. Step 1: Write the proportion equation
   70,858 : 154,172 = 154,172 : x
2. Step 2: Convert to fraction form
   70,858/154,172 = 154,172/x
3. Step 3: Cross multiply
   70,858x = 154,172 × 154,172
4. Step 4: Simplify right side
   70,858x = 23,769,005,584
5. Step 5: Solve for x
   x = 23,769,005,584/70,858
6. Step 6: Final answer
   x = 335,445.62