Finding the Third Proportional to 591,318 and 1,224,636

Step by Step Solution

1. Step 1: Write the proportion equation
   591,318 : 1,224,636 = 1,224,636 : x
2. Step 2: Convert to fraction form
   591,318/1,224,636 = 1,224,636/x
3. Step 3: Cross multiply
   591,318x = 1,224,636 × 1,224,636
4. Step 4: Simplify right side
   591,318x = 1,499,733,332,496
5. Step 5: Solve for x
   x = 1,499,733,332,496/591,318
6. Step 6: Final answer
   x = 2,536,255.17