Finding the Third Proportional to 407,830 and 885,724

Step by Step Solution

1. Step 1: Write the proportion equation
   407,830 : 885,724 = 885,724 : x
2. Step 2: Convert to fraction form
   407,830/885,724 = 885,724/x
3. Step 3: Cross multiply
   407,830x = 885,724 × 885,724
4. Step 4: Simplify right side
   407,830x = 784,507,004,176
5. Step 5: Solve for x
   x = 784,507,004,176/407,830
6. Step 6: Final answer
   x = 1,923,612.79