Finding the Third Proportional to 655,378.50 and 885,456

Step by Step Solution

1. Step 1: Write the proportion equation
   655,378.50 : 885,456 = 885,456 : x
2. Step 2: Convert to fraction form
   655,378.50/885,456 = 885,456/x
3. Step 3: Cross multiply
   655,378.50x = 885,456 × 885,456
4. Step 4: Simplify right side
   655,378.50x = 784,032,327,936
5. Step 5: Solve for x
   x = 784,032,327,936/655,378.50
6. Step 6: Final answer
   x = 1,196,304.62