Finding the Third Proportional to 663,281 and 1,421,194

Step by Step Solution

1. Step 1: Write the proportion equation
   663,281 : 1,421,194 = 1,421,194 : x
2. Step 2: Convert to fraction form
   663,281/1,421,194 = 1,421,194/x
3. Step 3: Cross multiply
   663,281x = 1,421,194 × 1,421,194
4. Step 4: Simplify right side
   663,281x = 2,019,792,385,636
5. Step 5: Solve for x
   x = 2,019,792,385,636/663,281
6. Step 6: Final answer
   x = 3,045,153.39