Finding the Third Proportional to 136,858 and 300,361

Step by Step Solution

1. Step 1: Write the proportion equation
   136,858 : 300,361 = 300,361 : x
2. Step 2: Convert to fraction form
   136,858/300,361 = 300,361/x
3. Step 3: Cross multiply
   136,858x = 300,361 × 300,361
4. Step 4: Simplify right side
   136,858x = 90,216,730,321
5. Step 5: Solve for x
   x = 90,216,730,321/136,858
6. Step 6: Final answer
   x = 659,199.54