Finding the Third Proportional to 395,263.50 and 865,491

Step by Step Solution

1. Step 1: Write the proportion equation
   395,263.50 : 865,491 = 865,491 : x
2. Step 2: Convert to fraction form
   395,263.50/865,491 = 865,491/x
3. Step 3: Cross multiply
   395,263.50x = 865,491 × 865,491
4. Step 4: Simplify right side
   395,263.50x = 749,074,671,081
5. Step 5: Solve for x
   x = 749,074,671,081/395,263.50
6. Step 6: Final answer
   x = 1,895,127.35