Finding the Third Proportional to 2,198,346 and 4,772,688

Step by Step Solution

1. Step 1: Write the proportion equation
   2,198,346 : 4,772,688 = 4,772,688 : x
2. Step 2: Convert to fraction form
   2,198,346/4,772,688 = 4,772,688/x
3. Step 3: Cross multiply
   2,198,346x = 4,772,688 × 4,772,688
4. Step 4: Simplify right side
   2,198,346x = 22,778,550,745,344
5. Step 5: Solve for x
   x = 22,778,550,745,344/2,198,346
6. Step 6: Final answer
   x = 10,361,676.80