Finding the Third Proportional to 525,128 and 787,500

Step by Step Solution

1. Step 1: Write the proportion equation
   525,128 : 787,500 = 787,500 : x
2. Step 2: Convert to fraction form
   525,128/787,500 = 787,500/x
3. Step 3: Cross multiply
   525,128x = 787,500 × 787,500
4. Step 4: Simplify right side
   525,128x = 620,156,250,000
5. Step 5: Solve for x
   x = 620,156,250,000/525,128
6. Step 6: Final answer
   x = 1,180,962.07