Finding the Third Proportional to 2,218,354 and 4,772,959

Step by Step Solution

1. Step 1: Write the proportion equation
   2,218,354 : 4,772,959 = 4,772,959 : x
2. Step 2: Convert to fraction form
   2,218,354/4,772,959 = 4,772,959/x
3. Step 3: Cross multiply
   2,218,354x = 4,772,959 × 4,772,959
4. Step 4: Simplify right side
   2,218,354x = 22,781,137,615,681
5. Step 5: Solve for x
   x = 22,781,137,615,681/2,218,354
6. Step 6: Final answer
   x = 10,269,387.85