Finding the Third Proportional to 428,986 and 914,968

Step by Step Solution

1. Step 1: Write the proportion equation
   428,986 : 914,968 = 914,968 : x
2. Step 2: Convert to fraction form
   428,986/914,968 = 914,968/x
3. Step 3: Cross multiply
   428,986x = 914,968 × 914,968
4. Step 4: Simplify right side
   428,986x = 837,166,441,024
5. Step 5: Solve for x
   x = 837,166,441,024/428,986
6. Step 6: Final answer
   x = 1,951,500.61