Finding the Third Proportional to 985,258 and 2,117,856

Step by Step Solution

1. Step 1: Write the proportion equation
   985,258 : 2,117,856 = 2,117,856 : x
2. Step 2: Convert to fraction form
   985,258/2,117,856 = 2,117,856/x
3. Step 3: Cross multiply
   985,258x = 2,117,856 × 2,117,856
4. Step 4: Simplify right side
   985,258x = 4,485,314,036,736
5. Step 5: Solve for x
   x = 4,485,314,036,736/985,258
6. Step 6: Final answer
   x = 4,552,425.90