Finding the Third Proportional to 407,939.50 and 883,676

Step by Step Solution

1. Step 1: Write the proportion equation
   407,939.50 : 883,676 = 883,676 : x
2. Step 2: Convert to fraction form
   407,939.50/883,676 = 883,676/x
3. Step 3: Cross multiply
   407,939.50x = 883,676 × 883,676
4. Step 4: Simplify right side
   407,939.50x = 780,883,272,976
5. Step 5: Solve for x
   x = 780,883,272,976/407,939.50
6. Step 6: Final answer
   x = 1,914,213.44