Finding the Third Proportional to 234,028 and 456,386

Step by Step Solution

1. Step 1: Write the proportion equation
   234,028 : 456,386 = 456,386 : x
2. Step 2: Convert to fraction form
   234,028/456,386 = 456,386/x
3. Step 3: Cross multiply
   234,028x = 456,386 × 456,386
4. Step 4: Simplify right side
   234,028x = 208,288,180,996
5. Step 5: Solve for x
   x = 208,288,180,996/234,028
6. Step 6: Final answer
   x = 890,013.93