Finding the Third Proportional to 663,262 and 1,421,144

Step by Step Solution

1. Step 1: Write the proportion equation
   663,262 : 1,421,144 = 1,421,144 : x
2. Step 2: Convert to fraction form
   663,262/1,421,144 = 1,421,144/x
3. Step 3: Cross multiply
   663,262x = 1,421,144 × 1,421,144
4. Step 4: Simplify right side
   663,262x = 2,019,650,268,736
5. Step 5: Solve for x
   x = 2,019,650,268,736/663,262
6. Step 6: Final answer
   x = 3,045,026.35