Finding the Third Proportional to 108,321 and 167,398.50

Step by Step Solution

1. Step 1: Write the proportion equation
   108,321 : 167,398.50 = 167,398.50 : x
2. Step 2: Convert to fraction form
   108,321/167,398.50 = 167,398.50/x
3. Step 3: Cross multiply
   108,321x = 167,398.50 × 167,398.50
4. Step 4: Simplify right side
   108,321x = 28,022,257,802.25
5. Step 5: Solve for x
   x = 28,022,257,802.25/108,321
6. Step 6: Final answer
   x = 258,696.45