Finding the Third Proportional to 665,281.50 and 1,042,428

Step by Step Solution

1. Step 1: Write the proportion equation
   665,281.50 : 1,042,428 = 1,042,428 : x
2. Step 2: Convert to fraction form
   665,281.50/1,042,428 = 1,042,428/x
3. Step 3: Cross multiply
   665,281.50x = 1,042,428 × 1,042,428
4. Step 4: Simplify right side
   665,281.50x = 1,086,656,135,184
5. Step 5: Solve for x
   x = 1,086,656,135,184/665,281.50
6. Step 6: Final answer
   x = 1,633,377.95