Finding the Third Proportional to 71,677.75 and 167,404.25

Step by Step Solution

1. Step 1: Write the proportion equation
   71,677.75 : 167,404.25 = 167,404.25 : x
2. Step 2: Convert to fraction form
   71,677.75/167,404.25 = 167,404.25/x
3. Step 3: Cross multiply
   71,677.75x = 167,404.25 × 167,404.25
4. Step 4: Simplify right side
   71,677.75x = 28,024,182,918.06
5. Step 5: Solve for x
   x = 28,024,182,918.06/71,677.75
6. Step 6: Final answer
   x = 390,974.65