Finding the Third Proportional to 139,520 and 302,064

Step by Step Solution

1. Step 1: Write the proportion equation
   139,520 : 302,064 = 302,064 : x
2. Step 2: Convert to fraction form
   139,520/302,064 = 302,064/x
3. Step 3: Cross multiply
   139,520x = 302,064 × 302,064
4. Step 4: Simplify right side
   139,520x = 91,242,660,096
5. Step 5: Solve for x
   x = 91,242,660,096/139,520
6. Step 6: Final answer
   x = 653,975.49