Finding the Third Proportional to 335,070 and 518,157.50

Step by Step Solution

1. Step 1: Write the proportion equation
   335,070 : 518,157.50 = 518,157.50 : x
2. Step 2: Convert to fraction form
   335,070/518,157.50 = 518,157.50/x
3. Step 3: Cross multiply
   335,070x = 518,157.50 × 518,157.50
4. Step 4: Simplify right side
   335,070x = 268,487,194,806.25
5. Step 5: Solve for x
   x = 268,487,194,806.25/335,070
6. Step 6: Final answer
   x = 801,286.88