Finding the Third Proportional to 139,146 and 300,524

Step by Step Solution

1. Step 1: Write the proportion equation
   139,146 : 300,524 = 300,524 : x
2. Step 2: Convert to fraction form
   139,146/300,524 = 300,524/x
3. Step 3: Cross multiply
   139,146x = 300,524 × 300,524
4. Step 4: Simplify right side
   139,146x = 90,314,674,576
5. Step 5: Solve for x
   x = 90,314,674,576/139,146
6. Step 6: Final answer
   x = 649,064.11