Finding the Third Proportional to 303,559 and 666,166

Step by Step Solution

1. Step 1: Write the proportion equation
   303,559 : 666,166 = 666,166 : x
2. Step 2: Convert to fraction form
   303,559/666,166 = 666,166/x
3. Step 3: Cross multiply
   303,559x = 666,166 × 666,166
4. Step 4: Simplify right side
   303,559x = 443,777,139,556
5. Step 5: Solve for x
   x = 443,777,139,556/303,559
6. Step 6: Final answer
   x = 1,461,913.96