Finding the Third Proportional to 1,817,213 and 3,964,504

Step by Step Solution

1. Step 1: Write the proportion equation
   1,817,213 : 3,964,504 = 3,964,504 : x
2. Step 2: Convert to fraction form
   1,817,213/3,964,504 = 3,964,504/x
3. Step 3: Cross multiply
   1,817,213x = 3,964,504 × 3,964,504
4. Step 4: Simplify right side
   1,817,213x = 15,717,291,966,016
5. Step 5: Solve for x
   x = 15,717,291,966,016/1,817,213
6. Step 6: Final answer
   x = 8,649,119.26