Finding the Third Proportional to 220,698 and 472,500

Step by Step Solution

1. Step 1: Write the proportion equation
   220,698 : 472,500 = 472,500 : x
2. Step 2: Convert to fraction form
   220,698/472,500 = 472,500/x
3. Step 3: Cross multiply
   220,698x = 472,500 × 472,500
4. Step 4: Simplify right side
   220,698x = 223,256,250,000
5. Step 5: Solve for x
   x = 223,256,250,000/220,698
6. Step 6: Final answer
   x = 1,011,591.63