Finding the Third Proportional to 167,134.50 and 258,906

Step by Step Solution

1. Step 1: Write the proportion equation
   167,134.50 : 258,906 = 258,906 : x
2. Step 2: Convert to fraction form
   167,134.50/258,906 = 258,906/x
3. Step 3: Cross multiply
   167,134.50x = 258,906 × 258,906
4. Step 4: Simplify right side
   167,134.50x = 67,032,316,836
5. Step 5: Solve for x
   x = 67,032,316,836/167,134.50
6. Step 6: Final answer
   x = 401,068.10