Finding the Third Proportional to 668,410 and 1,443,353

Step by Step Solution

1. Step 1: Write the proportion equation
   668,410 : 1,443,353 = 1,443,353 : x
2. Step 2: Convert to fraction form
   668,410/1,443,353 = 1,443,353/x
3. Step 3: Cross multiply
   668,410x = 1,443,353 × 1,443,353
4. Step 4: Simplify right side
   668,410x = 2,083,267,882,609
5. Step 5: Solve for x
   x = 2,083,267,882,609/668,410
6. Step 6: Final answer
   x = 3,116,751.52