Finding the Third Proportional to 139,360 and 301,080

Step by Step Solution

1. Step 1: Write the proportion equation
   139,360 : 301,080 = 301,080 : x
2. Step 2: Convert to fraction form
   139,360/301,080 = 301,080/x
3. Step 3: Cross multiply
   139,360x = 301,080 × 301,080
4. Step 4: Simplify right side
   139,360x = 90,649,166,400
5. Step 5: Solve for x
   x = 90,649,166,400/139,360
6. Step 6: Final answer
   x = 650,467.61