Finding the Third Proportional to 489,783.38 and 756,510.56

Step by Step Solution

1. Step 1: Write the proportion equation
   489,783.38 : 756,510.56 = 756,510.56 : x
2. Step 2: Convert to fraction form
   489,783.38/756,510.56 = 756,510.56/x
3. Step 3: Cross multiply
   489,783.38x = 756,510.56 × 756,510.56
4. Step 4: Simplify right side
   489,783.38x = 572,308,231,174.07
5. Step 5: Solve for x
   x = 572,308,231,174.07/489,783.38
6. Step 6: Final answer
   x = 1,168,492.56