Finding the Third Proportional to 108,489 and 167,647.50

Step by Step Solution

1. Step 1: Write the proportion equation
   108,489 : 167,647.50 = 167,647.50 : x
2. Step 2: Convert to fraction form
   108,489/167,647.50 = 167,647.50/x
3. Step 3: Cross multiply
   108,489x = 167,647.50 × 167,647.50
4. Step 4: Simplify right side
   108,489x = 28,105,684,256.25
5. Step 5: Solve for x
   x = 28,105,684,256.25/108,489
6. Step 6: Final answer
   x = 259,064.83