Finding the Third Proportional to 1,615,624 and 3,398,384

Step by Step Solution

1. Step 1: Write the proportion equation
   1,615,624 : 3,398,384 = 3,398,384 : x
2. Step 2: Convert to fraction form
   1,615,624/3,398,384 = 3,398,384/x
3. Step 3: Cross multiply
   1,615,624x = 3,398,384 × 3,398,384
4. Step 4: Simplify right side
   1,615,624x = 11,549,013,811,456
5. Step 5: Solve for x
   x = 11,549,013,811,456/1,615,624
6. Step 6: Final answer
   x = 7,148,330.19