Finding the Third Proportional to 333,898.50 and 787,408.50

Step by Step Solution

1. Step 1: Write the proportion equation
   333,898.50 : 787,408.50 = 787,408.50 : x
2. Step 2: Convert to fraction form
   333,898.50/787,408.50 = 787,408.50/x
3. Step 3: Cross multiply
   333,898.50x = 787,408.50 × 787,408.50
4. Step 4: Simplify right side
   333,898.50x = 620,012,145,872.25
5. Step 5: Solve for x
   x = 620,012,145,872.25/333,898.50
6. Step 6: Final answer
   x = 1,856,888.08