Finding the Third Proportional to 173,234.81 and 259,146

Step by Step Solution

1. Step 1: Write the proportion equation
   173,234.81 : 259,146 = 259,146 : x
2. Step 2: Convert to fraction form
   173,234.81/259,146 = 259,146/x
3. Step 3: Cross multiply
   173,234.81x = 259,146 × 259,146
4. Step 4: Simplify right side
   173,234.81x = 67,156,649,316
5. Step 5: Solve for x
   x = 67,156,649,316/173,234.81
6. Step 6: Final answer
   x = 387,662.55