Finding the Third Proportional to 525,105 and 787,495.50

Step by Step Solution

1. Step 1: Write the proportion equation
   525,105 : 787,495.50 = 787,495.50 : x
2. Step 2: Convert to fraction form
   525,105/787,495.50 = 787,495.50/x
3. Step 3: Cross multiply
   525,105x = 787,495.50 × 787,495.50
4. Step 4: Simplify right side
   525,105x = 620,149,162,520.25
5. Step 5: Solve for x
   x = 620,149,162,520.25/525,105
6. Step 6: Final answer
   x = 1,181,000.30