Finding the Third Proportional to 224,738 and 486,978

Step by Step Solution

1. Step 1: Write the proportion equation
   224,738 : 486,978 = 486,978 : x
2. Step 2: Convert to fraction form
   224,738/486,978 = 486,978/x
3. Step 3: Cross multiply
   224,738x = 486,978 × 486,978
4. Step 4: Simplify right side
   224,738x = 237,147,572,484
5. Step 5: Solve for x
   x = 237,147,572,484/224,738
6. Step 6: Final answer
   x = 1,055,217.95