Finding the Third Proportional to 666,404 and 1,451,128

Step by Step Solution

1. Step 1: Write the proportion equation
   666,404 : 1,451,128 = 1,451,128 : x
2. Step 2: Convert to fraction form
   666,404/1,451,128 = 1,451,128/x
3. Step 3: Cross multiply
   666,404x = 1,451,128 × 1,451,128
4. Step 4: Simplify right side
   666,404x = 2,105,772,472,384
5. Step 5: Solve for x
   x = 2,105,772,472,384/666,404
6. Step 6: Final answer
   x = 3,159,903.71