Finding the Third Proportional to 443,139 and 966,486

Step by Step Solution

1. Step 1: Write the proportion equation
   443,139 : 966,486 = 966,486 : x
2. Step 2: Convert to fraction form
   443,139/966,486 = 966,486/x
3. Step 3: Cross multiply
   443,139x = 966,486 × 966,486
4. Step 4: Simplify right side
   443,139x = 934,095,188,196
5. Step 5: Solve for x
   x = 934,095,188,196/443,139
6. Step 6: Final answer
   x = 2,107,905.62