Finding the Third Proportional to 663,252 and 1,421,136

Step by Step Solution

1. Step 1: Write the proportion equation
   663,252 : 1,421,136 = 1,421,136 : x
2. Step 2: Convert to fraction form
   663,252/1,421,136 = 1,421,136/x
3. Step 3: Cross multiply
   663,252x = 1,421,136 × 1,421,136
4. Step 4: Simplify right side
   663,252x = 2,019,627,530,496
5. Step 5: Solve for x
   x = 2,019,627,530,496/663,252
6. Step 6: Final answer
   x = 3,045,037.98