Finding the Third Proportional to 405,238 and 881,826.50

Step by Step Solution

1. Step 1: Write the proportion equation
   405,238 : 881,826.50 = 881,826.50 : x
2. Step 2: Convert to fraction form
   405,238/881,826.50 = 881,826.50/x
3. Step 3: Cross multiply
   405,238x = 881,826.50 × 881,826.50
4. Step 4: Simplify right side
   405,238x = 777,617,976,102.25
5. Step 5: Solve for x
   x = 777,617,976,102.25/405,238
6. Step 6: Final answer
   x = 1,918,916.73