Finding the Third Proportional to 603,648 and 816,898.50

Step by Step Solution

1. Step 1: Write the proportion equation
   603,648 : 816,898.50 = 816,898.50 : x
2. Step 2: Convert to fraction form
   603,648/816,898.50 = 816,898.50/x
3. Step 3: Cross multiply
   603,648x = 816,898.50 × 816,898.50
4. Step 4: Simplify right side
   603,648x = 667,323,159,302.25
5. Step 5: Solve for x
   x = 667,323,159,302.25/603,648
6. Step 6: Final answer
   x = 1,105,483.92