Finding the Third Proportional to 368,342 and 519,912.50

Step by Step Solution

1. Step 1: Write the proportion equation
   368,342 : 519,912.50 = 519,912.50 : x
2. Step 2: Convert to fraction form
   368,342/519,912.50 = 519,912.50/x
3. Step 3: Cross multiply
   368,342x = 519,912.50 × 519,912.50
4. Step 4: Simplify right side
   368,342x = 270,309,007,656.25
5. Step 5: Solve for x
   x = 270,309,007,656.25/368,342
6. Step 6: Final answer
   x = 733,853.34