Finding the Third Proportional to 645,115.50 and 997,227

Step by Step Solution

1. Step 1: Write the proportion equation
   645,115.50 : 997,227 = 997,227 : x
2. Step 2: Convert to fraction form
   645,115.50/997,227 = 997,227/x
3. Step 3: Cross multiply
   645,115.50x = 997,227 × 997,227
4. Step 4: Simplify right side
   645,115.50x = 994,461,689,529
5. Step 5: Solve for x
   x = 994,461,689,529/645,115.50
6. Step 6: Final answer
   x = 1,541,525.03