Finding the Third Proportional to 169,515 and 262,642.50

Step by Step Solution

1. Step 1: Write the proportion equation
   169,515 : 262,642.50 = 262,642.50 : x
2. Step 2: Convert to fraction form
   169,515/262,642.50 = 262,642.50/x
3. Step 3: Cross multiply
   169,515x = 262,642.50 × 262,642.50
4. Step 4: Simplify right side
   169,515x = 68,981,082,806.25
5. Step 5: Solve for x
   x = 68,981,082,806.25/169,515
6. Step 6: Final answer
   x = 406,932.03