Finding the Third Proportional to 1,355,407 and 2,890,957

Step by Step Solution

1. Step 1: Write the proportion equation
   1,355,407 : 2,890,957 = 2,890,957 : x
2. Step 2: Convert to fraction form
   1,355,407/2,890,957 = 2,890,957/x
3. Step 3: Cross multiply
   1,355,407x = 2,890,957 × 2,890,957
4. Step 4: Simplify right side
   1,355,407x = 8,357,632,375,849
5. Step 5: Solve for x
   x = 8,357,632,375,849/1,355,407
6. Step 6: Final answer
   x = 6,166,142.26