Finding the Third Proportional to 2,220,420 and 4,615,371

Step by Step Solution

1. Step 1: Write the proportion equation
   2,220,420 : 4,615,371 = 4,615,371 : x
2. Step 2: Convert to fraction form
   2,220,420/4,615,371 = 4,615,371/x
3. Step 3: Cross multiply
   2,220,420x = 4,615,371 × 4,615,371
4. Step 4: Simplify right side
   2,220,420x = 21,301,649,467,641
5. Step 5: Solve for x
   x = 21,301,649,467,641/2,220,420
6. Step 6: Final answer
   x = 9,593,522.61