Finding the Third Proportional to 303,690 and 666,426

Step by Step Solution

1. Step 1: Write the proportion equation
   303,690 : 666,426 = 666,426 : x
2. Step 2: Convert to fraction form
   303,690/666,426 = 666,426/x
3. Step 3: Cross multiply
   303,690x = 666,426 × 666,426
4. Step 4: Simplify right side
   303,690x = 444,123,613,476
5. Step 5: Solve for x
   x = 444,123,613,476/303,690
6. Step 6: Final answer
   x = 1,462,424.23