Finding the Third Proportional to 666,102 and 1,015,839

Step by Step Solution

1. Step 1: Write the proportion equation
   666,102 : 1,015,839 = 1,015,839 : x
2. Step 2: Convert to fraction form
   666,102/1,015,839 = 1,015,839/x
3. Step 3: Cross multiply
   666,102x = 1,015,839 × 1,015,839
4. Step 4: Simplify right side
   666,102x = 1,031,928,873,921
5. Step 5: Solve for x
   x = 1,031,928,873,921/666,102
6. Step 6: Final answer
   x = 1,549,205.49