Finding the Third Proportional to 397,294.50 and 862,317

Step by Step Solution

1. Step 1: Write the proportion equation
   397,294.50 : 862,317 = 862,317 : x
2. Step 2: Convert to fraction form
   397,294.50/862,317 = 862,317/x
3. Step 3: Cross multiply
   397,294.50x = 862,317 × 862,317
4. Step 4: Simplify right side
   397,294.50x = 743,590,608,489
5. Step 5: Solve for x
   x = 743,590,608,489/397,294.50
6. Step 6: Final answer
   x = 1,871,635.80