Finding the Third Proportional to 90,434 and 143,308

Step by Step Solution

1. Step 1: Write the proportion equation
   90,434 : 143,308 = 143,308 : x
2. Step 2: Convert to fraction form
   90,434/143,308 = 143,308/x
3. Step 3: Cross multiply
   90,434x = 143,308 × 143,308
4. Step 4: Simplify right side
   90,434x = 20,537,182,864
5. Step 5: Solve for x
   x = 20,537,182,864/90,434
6. Step 6: Final answer
   x = 227,095.81