Finding the Third Proportional to 668,437 and 1,443,410

Step by Step Solution

1. Step 1: Write the proportion equation
   668,437 : 1,443,410 = 1,443,410 : x
2. Step 2: Convert to fraction form
   668,437/1,443,410 = 1,443,410/x
3. Step 3: Cross multiply
   668,437x = 1,443,410 × 1,443,410
4. Step 4: Simplify right side
   668,437x = 2,083,432,428,100
5. Step 5: Solve for x
   x = 2,083,432,428,100/668,437
6. Step 6: Final answer
   x = 3,116,871.79