Finding the Third Proportional to 303,768 and 666,040

Step by Step Solution

1. Step 1: Write the proportion equation
   303,768 : 666,040 = 666,040 : x
2. Step 2: Convert to fraction form
   303,768/666,040 = 666,040/x
3. Step 3: Cross multiply
   303,768x = 666,040 × 666,040
4. Step 4: Simplify right side
   303,768x = 443,609,281,600
5. Step 5: Solve for x
   x = 443,609,281,600/303,768
6. Step 6: Final answer
   x = 1,460,355.54