Finding the Third Proportional to 663,282 and 1,421,196

Step by Step Solution

1. Step 1: Write the proportion equation
   663,282 : 1,421,196 = 1,421,196 : x
2. Step 2: Convert to fraction form
   663,282/1,421,196 = 1,421,196/x
3. Step 3: Cross multiply
   663,282x = 1,421,196 × 1,421,196
4. Step 4: Simplify right side
   663,282x = 2,019,798,070,416
5. Step 5: Solve for x
   x = 2,019,798,070,416/663,282
6. Step 6: Final answer
   x = 3,045,157.37