Finding the Third Proportional to 405,141.75 and 881,705.25

Step by Step Solution

1. Step 1: Write the proportion equation
   405,141.75 : 881,705.25 = 881,705.25 : x
2. Step 2: Convert to fraction form
   405,141.75/881,705.25 = 881,705.25/x
3. Step 3: Cross multiply
   405,141.75x = 881,705.25 × 881,705.25
4. Step 4: Simplify right side
   405,141.75x = 777,404,147,877.56
5. Step 5: Solve for x
   x = 777,404,147,877.56/405,141.75
6. Step 6: Final answer
   x = 1,918,844.82