Finding the Third Proportional to 405,123 and 883,143

Step by Step Solution

1. Step 1: Write the proportion equation
   405,123 : 883,143 = 883,143 : x
2. Step 2: Convert to fraction form
   405,123/883,143 = 883,143/x
3. Step 3: Cross multiply
   405,123x = 883,143 × 883,143
4. Step 4: Simplify right side
   405,123x = 779,941,558,449
5. Step 5: Solve for x
   x = 779,941,558,449/405,123
6. Step 6: Final answer
   x = 1,925,196.94