Finding the Third Proportional to 395,299.50 and 869,317

Step by Step Solution

1. Step 1: Write the proportion equation
   395,299.50 : 869,317 = 869,317 : x
2. Step 2: Convert to fraction form
   395,299.50/869,317 = 869,317/x
3. Step 3: Cross multiply
   395,299.50x = 869,317 × 869,317
4. Step 4: Simplify right side
   395,299.50x = 755,712,046,489
5. Step 5: Solve for x
   x = 755,712,046,489/395,299.50
6. Step 6: Final answer
   x = 1,911,745.52