Finding the Third Proportional to 2,220,440 and 4,615,416

Step by Step Solution

1. Step 1: Write the proportion equation
   2,220,440 : 4,615,416 = 4,615,416 : x
2. Step 2: Convert to fraction form
   2,220,440/4,615,416 = 4,615,416/x
3. Step 3: Cross multiply
   2,220,440x = 4,615,416 × 4,615,416
4. Step 4: Simplify right side
   2,220,440x = 21,302,064,853,056
5. Step 5: Solve for x
   x = 21,302,064,853,056/2,220,440
6. Step 6: Final answer
   x = 9,593,623.27