Finding the Third Proportional to 139,945 and 302,000

Step by Step Solution

1. Step 1: Write the proportion equation
   139,945 : 302,000 = 302,000 : x
2. Step 2: Convert to fraction form
   139,945/302,000 = 302,000/x
3. Step 3: Cross multiply
   139,945x = 302,000 × 302,000
4. Step 4: Simplify right side
   139,945x = 91,204,000,000
5. Step 5: Solve for x
   x = 91,204,000,000/139,945
6. Step 6: Final answer
   x = 651,713.17