Finding the Third Proportional to 139,524 and 302,072

Step by Step Solution

1. Step 1: Write the proportion equation
   139,524 : 302,072 = 302,072 : x
2. Step 2: Convert to fraction form
   139,524/302,072 = 302,072/x
3. Step 3: Cross multiply
   139,524x = 302,072 × 302,072
4. Step 4: Simplify right side
   139,524x = 91,247,493,184
5. Step 5: Solve for x
   x = 91,247,493,184/139,524
6. Step 6: Final answer
   x = 653,991.38