Finding the Third Proportional to 489,762.56 and 756,808.31

Step by Step Solution

1. Step 1: Write the proportion equation
   489,762.56 : 756,808.31 = 756,808.31 : x
2. Step 2: Convert to fraction form
   489,762.56/756,808.31 = 756,808.31/x
3. Step 3: Cross multiply
   489,762.56x = 756,808.31 × 756,808.31
4. Step 4: Simplify right side
   489,762.56x = 572,758,821,869.10
5. Step 5: Solve for x
   x = 572,758,821,869.10/489,762.56
6. Step 6: Final answer
   x = 1,169,462.24