Finding the Third Proportional to 405,068.50 and 886,383

Step by Step Solution

1. Step 1: Write the proportion equation
   405,068.50 : 886,383 = 886,383 : x
2. Step 2: Convert to fraction form
   405,068.50/886,383 = 886,383/x
3. Step 3: Cross multiply
   405,068.50x = 886,383 × 886,383
4. Step 4: Simplify right side
   405,068.50x = 785,674,822,689
5. Step 5: Solve for x
   x = 785,674,822,689/405,068.50
6. Step 6: Final answer
   x = 1,939,609.78