Finding the Third Proportional to 218,364 and 477,462

Step by Step Solution

1. Step 1: Write the proportion equation
   218,364 : 477,462 = 477,462 : x
2. Step 2: Convert to fraction form
   218,364/477,462 = 477,462/x
3. Step 3: Cross multiply
   218,364x = 477,462 × 477,462
4. Step 4: Simplify right side
   218,364x = 227,969,961,444
5. Step 5: Solve for x
   x = 227,969,961,444/218,364
6. Step 6: Final answer
   x = 1,043,990.59