Finding the Third Proportional to 140,559 and 302,610

Step by Step Solution

1. Step 1: Write the proportion equation
   140,559 : 302,610 = 302,610 : x
2. Step 2: Convert to fraction form
   140,559/302,610 = 302,610/x
3. Step 3: Cross multiply
   140,559x = 302,610 × 302,610
4. Step 4: Simplify right side
   140,559x = 91,572,812,100
5. Step 5: Solve for x
   x = 91,572,812,100/140,559
6. Step 6: Final answer
   x = 651,490.21