Finding the Third Proportional to 2,220,712 and 4,778,304

Step by Step Solution

1. Step 1: Write the proportion equation
   2,220,712 : 4,778,304 = 4,778,304 : x
2. Step 2: Convert to fraction form
   2,220,712/4,778,304 = 4,778,304/x
3. Step 3: Cross multiply
   2,220,712x = 4,778,304 × 4,778,304
4. Step 4: Simplify right side
   2,220,712x = 22,832,189,116,416
5. Step 5: Solve for x
   x = 22,832,189,116,416/2,220,712
6. Step 6: Final answer
   x = 10,281,472.39