Finding the Third Proportional to 2,218,258 and 3,312,603

Step by Step Solution

1. Step 1: Write the proportion equation
   2,218,258 : 3,312,603 = 3,312,603 : x
2. Step 2: Convert to fraction form
   2,218,258/3,312,603 = 3,312,603/x
3. Step 3: Cross multiply
   2,218,258x = 3,312,603 × 3,312,603
4. Step 4: Simplify right side
   2,218,258x = 10,973,338,635,609
5. Step 5: Solve for x
   x = 10,973,338,635,609/2,218,258
6. Step 6: Final answer
   x = 4,946,827.03