Finding the Third Proportional to 173,159 and 259,041.50

Step by Step Solution

1. Step 1: Write the proportion equation
   173,159 : 259,041.50 = 259,041.50 : x
2. Step 2: Convert to fraction form
   173,159/259,041.50 = 259,041.50/x
3. Step 3: Cross multiply
   173,159x = 259,041.50 × 259,041.50
4. Step 4: Simplify right side
   173,159x = 67,102,498,722.25
5. Step 5: Solve for x
   x = 67,102,498,722.25/173,159
6. Step 6: Final answer
   x = 387,519.56