Finding the Third Proportional to 173,160 and 259,744.50

Step by Step Solution

1. Step 1: Write the proportion equation
   173,160 : 259,744.50 = 259,744.50 : x
2. Step 2: Convert to fraction form
   173,160/259,744.50 = 259,744.50/x
3. Step 3: Cross multiply
   173,160x = 259,744.50 × 259,744.50
4. Step 4: Simplify right side
   173,160x = 67,467,205,280.25
5. Step 5: Solve for x
   x = 67,467,205,280.25/173,160
6. Step 6: Final answer
   x = 389,623.50