Finding the Third Proportional to 210,732 and 456,456

Step by Step Solution

1. Step 1: Write the proportion equation
   210,732 : 456,456 = 456,456 : x
2. Step 2: Convert to fraction form
   210,732/456,456 = 456,456/x
3. Step 3: Cross multiply
   210,732x = 456,456 × 456,456
4. Step 4: Simplify right side
   210,732x = 208,352,079,936
5. Step 5: Solve for x
   x = 208,352,079,936/210,732
6. Step 6: Final answer
   x = 988,706.41