Finding the Third Proportional to 215,244 and 424,968

Step by Step Solution

1. Step 1: Write the proportion equation
   215,244 : 424,968 = 424,968 : x
2. Step 2: Convert to fraction form
   215,244/424,968 = 424,968/x
3. Step 3: Cross multiply
   215,244x = 424,968 × 424,968
4. Step 4: Simplify right side
   215,244x = 180,597,801,024
5. Step 5: Solve for x
   x = 180,597,801,024/215,244
6. Step 6: Final answer
   x = 839,037.56