Finding the Third Proportional to 2,220,616 and 4,778,030

Step by Step Solution

1. Step 1: Write the proportion equation
   2,220,616 : 4,778,030 = 4,778,030 : x
2. Step 2: Convert to fraction form
   2,220,616/4,778,030 = 4,778,030/x
3. Step 3: Cross multiply
   2,220,616x = 4,778,030 × 4,778,030
4. Step 4: Simplify right side
   2,220,616x = 22,829,570,680,900
5. Step 5: Solve for x
   x = 22,829,570,680,900/2,220,616
6. Step 6: Final answer
   x = 10,280,737.72