Finding the Third Proportional to 90,700 and 143,005

Step by Step Solution

1. Step 1: Write the proportion equation
   90,700 : 143,005 = 143,005 : x
2. Step 2: Convert to fraction form
   90,700/143,005 = 143,005/x
3. Step 3: Cross multiply
   90,700x = 143,005 × 143,005
4. Step 4: Simplify right side
   90,700x = 20,450,430,025
5. Step 5: Solve for x
   x = 20,450,430,025/90,700
6. Step 6: Final answer
   x = 225,473.32