Finding the Third Proportional to 870,993 and 1,776,978

Step by Step Solution

1. Step 1: Write the proportion equation
   870,993 : 1,776,978 = 1,776,978 : x
2. Step 2: Convert to fraction form
   870,993/1,776,978 = 1,776,978/x
3. Step 3: Cross multiply
   870,993x = 1,776,978 × 1,776,978
4. Step 4: Simplify right side
   870,993x = 3,157,650,812,484
5. Step 5: Solve for x
   x = 3,157,650,812,484/870,993
6. Step 6: Final answer
   x = 3,625,345.80