Finding the Third Proportional to 631,320 and 850,588

Step by Step Solution

1. Step 1: Write the proportion equation
   631,320 : 850,588 = 850,588 : x
2. Step 2: Convert to fraction form
   631,320/850,588 = 850,588/x
3. Step 3: Cross multiply
   631,320x = 850,588 × 850,588
4. Step 4: Simplify right side
   631,320x = 723,499,945,744
5. Step 5: Solve for x
   x = 723,499,945,744/631,320
6. Step 6: Final answer
   x = 1,146,011.45