Finding the Third Proportional to 200,552 and 428,752

Step by Step Solution

1. Step 1: Write the proportion equation
   200,552 : 428,752 = 428,752 : x
2. Step 2: Convert to fraction form
   200,552/428,752 = 428,752/x
3. Step 3: Cross multiply
   200,552x = 428,752 × 428,752
4. Step 4: Simplify right side
   200,552x = 183,828,277,504
5. Step 5: Solve for x
   x = 183,828,277,504/200,552
6. Step 6: Final answer
   x = 916,611.54