Finding the Third Proportional to 333,939 and 517,162.50

Step by Step Solution

1. Step 1: Write the proportion equation
   333,939 : 517,162.50 = 517,162.50 : x
2. Step 2: Convert to fraction form
   333,939/517,162.50 = 517,162.50/x
3. Step 3: Cross multiply
   333,939x = 517,162.50 × 517,162.50
4. Step 4: Simplify right side
   333,939x = 267,457,051,406.25
5. Step 5: Solve for x
   x = 267,457,051,406.25/333,939
6. Step 6: Final answer
   x = 800,915.89