Finding the Third Proportional to 142,087.50 and 307,824

Step by Step Solution

1. Step 1: Write the proportion equation
   142,087.50 : 307,824 = 307,824 : x
2. Step 2: Convert to fraction form
   142,087.50/307,824 = 307,824/x
3. Step 3: Cross multiply
   142,087.50x = 307,824 × 307,824
4. Step 4: Simplify right side
   142,087.50x = 94,755,614,976
5. Step 5: Solve for x
   x = 94,755,614,976/142,087.50
6. Step 6: Final answer
   x = 666,882.13