Finding the Third Proportional to 506,290 and 1,113,636

Step by Step Solution

1. Step 1: Write the proportion equation
   506,290 : 1,113,636 = 1,113,636 : x
2. Step 2: Convert to fraction form
   506,290/1,113,636 = 1,113,636/x
3. Step 3: Cross multiply
   506,290x = 1,113,636 × 1,113,636
4. Step 4: Simplify right side
   506,290x = 1,240,185,140,496
5. Step 5: Solve for x
   x = 1,240,185,140,496/506,290
6. Step 6: Final answer
   x = 2,449,554.88