Finding the Third Proportional to 270,400.50 and 424,162

Step by Step Solution

1. Step 1: Write the proportion equation
   270,400.50 : 424,162 = 424,162 : x
2. Step 2: Convert to fraction form
   270,400.50/424,162 = 424,162/x
3. Step 3: Cross multiply
   270,400.50x = 424,162 × 424,162
4. Step 4: Simplify right side
   270,400.50x = 179,913,402,244
5. Step 5: Solve for x
   x = 179,913,402,244/270,400.50
6. Step 6: Final answer
   x = 665,358.99