Finding the Third Proportional to 666,309 and 1,030,608

Step by Step Solution

1. Step 1: Write the proportion equation
   666,309 : 1,030,608 = 1,030,608 : x
2. Step 2: Convert to fraction form
   666,309/1,030,608 = 1,030,608/x
3. Step 3: Cross multiply
   666,309x = 1,030,608 × 1,030,608
4. Step 4: Simplify right side
   666,309x = 1,062,152,849,664
5. Step 5: Solve for x
   x = 1,062,152,849,664/666,309
6. Step 6: Final answer
   x = 1,594,084.50