Finding the Third Proportional to 396,000 and 525,100.50

Step by Step Solution

1. Step 1: Write the proportion equation
   396,000 : 525,100.50 = 525,100.50 : x
2. Step 2: Convert to fraction form
   396,000/525,100.50 = 525,100.50/x
3. Step 3: Cross multiply
   396,000x = 525,100.50 × 525,100.50
4. Step 4: Simplify right side
   396,000x = 275,730,535,100.25
5. Step 5: Solve for x
   x = 275,730,535,100.25/396,000
6. Step 6: Final answer
   x = 696,289.23