Finding the Third Proportional to 905,283 and 1,978,722

Step by Step Solution

1. Step 1: Write the proportion equation
   905,283 : 1,978,722 = 1,978,722 : x
2. Step 2: Convert to fraction form
   905,283/1,978,722 = 1,978,722/x
3. Step 3: Cross multiply
   905,283x = 1,978,722 × 1,978,722
4. Step 4: Simplify right side
   905,283x = 3,915,340,753,284
5. Step 5: Solve for x
   x = 3,915,340,753,284/905,283
6. Step 6: Final answer
   x = 4,324,990.92