Finding the Third Proportional to 2,220,672 and 4,778,124

Step by Step Solution

1. Step 1: Write the proportion equation
   2,220,672 : 4,778,124 = 4,778,124 : x
2. Step 2: Convert to fraction form
   2,220,672/4,778,124 = 4,778,124/x
3. Step 3: Cross multiply
   2,220,672x = 4,778,124 × 4,778,124
4. Step 4: Simplify right side
   2,220,672x = 22,830,468,959,376
5. Step 5: Solve for x
   x = 22,830,468,959,376/2,220,672
6. Step 6: Final answer
   x = 10,280,882.98