Finding the Third Proportional to 685,861.50 and 925,192.50

Step by Step Solution

1. Step 1: Write the proportion equation
   685,861.50 : 925,192.50 = 925,192.50 : x
2. Step 2: Convert to fraction form
   685,861.50/925,192.50 = 925,192.50/x
3. Step 3: Cross multiply
   685,861.50x = 925,192.50 × 925,192.50
4. Step 4: Simplify right side
   685,861.50x = 855,981,162,056.25
5. Step 5: Solve for x
   x = 855,981,162,056.25/685,861.50
6. Step 6: Final answer
   x = 1,248,037.92