Finding the Third Proportional to 668,387 and 1,443,310

Step by Step Solution

1. Step 1: Write the proportion equation
   668,387 : 1,443,310 = 1,443,310 : x
2. Step 2: Convert to fraction form
   668,387/1,443,310 = 1,443,310/x
3. Step 3: Cross multiply
   668,387x = 1,443,310 × 1,443,310
4. Step 4: Simplify right side
   668,387x = 2,083,143,756,100
5. Step 5: Solve for x
   x = 2,083,143,756,100/668,387
6. Step 6: Final answer
   x = 3,116,673.06