Finding the Third Proportional to 137,210 and 300,655

Step by Step Solution

1. Step 1: Write the proportion equation
   137,210 : 300,655 = 300,655 : x
2. Step 2: Convert to fraction form
   137,210/300,655 = 300,655/x
3. Step 3: Cross multiply
   137,210x = 300,655 × 300,655
4. Step 4: Simplify right side
   137,210x = 90,393,429,025
5. Step 5: Solve for x
   x = 90,393,429,025/137,210
6. Step 6: Final answer
   x = 658,796.22