Finding the Third Proportional to 489,764.25 and 756,810

Step by Step Solution

1. Step 1: Write the proportion equation
   489,764.25 : 756,810 = 756,810 : x
2. Step 2: Convert to fraction form
   489,764.25/756,810 = 756,810/x
3. Step 3: Cross multiply
   489,764.25x = 756,810 × 756,810
4. Step 4: Simplify right side
   489,764.25x = 572,761,376,100
5. Step 5: Solve for x
   x = 572,761,376,100/489,764.25
6. Step 6: Final answer
   x = 1,169,463.42