Finding the Third Proportional to 218,070 and 477,774

Step by Step Solution

1. Step 1: Write the proportion equation
   218,070 : 477,774 = 477,774 : x
2. Step 2: Convert to fraction form
   218,070/477,774 = 477,774/x
3. Step 3: Cross multiply
   218,070x = 477,774 × 477,774
4. Step 4: Simplify right side
   218,070x = 228,267,995,076
5. Step 5: Solve for x
   x = 228,267,995,076/218,070
6. Step 6: Final answer
   x = 1,046,764.78