Finding the Third Proportional to 666,860 and 1,016,628

Step by Step Solution

1. Step 1: Write the proportion equation
   666,860 : 1,016,628 = 1,016,628 : x
2. Step 2: Convert to fraction form
   666,860/1,016,628 = 1,016,628/x
3. Step 3: Cross multiply
   666,860x = 1,016,628 × 1,016,628
4. Step 4: Simplify right side
   666,860x = 1,033,532,490,384
5. Step 5: Solve for x
   x = 1,033,532,490,384/666,860
6. Step 6: Final answer
   x = 1,549,849.28