Finding the Third Proportional to 136,826 and 300,624

Step by Step Solution

1. Step 1: Write the proportion equation
   136,826 : 300,624 = 300,624 : x
2. Step 2: Convert to fraction form
   136,826/300,624 = 300,624/x
3. Step 3: Cross multiply
   136,826x = 300,624 × 300,624
4. Step 4: Simplify right side
   136,826x = 90,374,789,376
5. Step 5: Solve for x
   x = 90,374,789,376/136,826
6. Step 6: Final answer
   x = 660,508.89