Finding the Third Proportional to 2,220,607 and 4,778,012

Step by Step Solution

1. Step 1: Write the proportion equation
   2,220,607 : 4,778,012 = 4,778,012 : x
2. Step 2: Convert to fraction form
   2,220,607/4,778,012 = 4,778,012/x
3. Step 3: Cross multiply
   2,220,607x = 4,778,012 × 4,778,012
4. Step 4: Simplify right side
   2,220,607x = 22,829,398,672,144
5. Step 5: Solve for x
   x = 22,829,398,672,144/2,220,607
6. Step 6: Final answer
   x = 10,280,701.93