Finding the Third Proportional to 405,060 and 886,404

Step by Step Solution

1. Step 1: Write the proportion equation
   405,060 : 886,404 = 886,404 : x
2. Step 2: Convert to fraction form
   405,060/886,404 = 886,404/x
3. Step 3: Cross multiply
   405,060x = 886,404 × 886,404
4. Step 4: Simplify right side
   405,060x = 785,712,051,216
5. Step 5: Solve for x
   x = 785,712,051,216/405,060
6. Step 6: Final answer
   x = 1,939,742.39