Finding the Third Proportional to 340,848 and 518,353.50

Step by Step Solution

1. Step 1: Write the proportion equation
   340,848 : 518,353.50 = 518,353.50 : x
2. Step 2: Convert to fraction form
   340,848/518,353.50 = 518,353.50/x
3. Step 3: Cross multiply
   340,848x = 518,353.50 × 518,353.50
4. Step 4: Simplify right side
   340,848x = 268,690,350,962.25
5. Step 5: Solve for x
   x = 268,690,350,962.25/340,848
6. Step 6: Final answer
   x = 788,299.63