Finding the Third Proportional to 133,309.50 and 212,007

Step by Step Solution

1. Step 1: Write the proportion equation
   133,309.50 : 212,007 = 212,007 : x
2. Step 2: Convert to fraction form
   133,309.50/212,007 = 212,007/x
3. Step 3: Cross multiply
   133,309.50x = 212,007 × 212,007
4. Step 4: Simplify right side
   133,309.50x = 44,946,968,049
5. Step 5: Solve for x
   x = 44,946,968,049/133,309.50
6. Step 6: Final answer
   x = 337,162.53