Finding the Third Proportional to 1,823,558 and 4,221,210

Step by Step Solution

1. Step 1: Write the proportion equation
   1,823,558 : 4,221,210 = 4,221,210 : x
2. Step 2: Convert to fraction form
   1,823,558/4,221,210 = 4,221,210/x
3. Step 3: Cross multiply
   1,823,558x = 4,221,210 × 4,221,210
4. Step 4: Simplify right side
   1,823,558x = 17,818,613,864,100
5. Step 5: Solve for x
   x = 17,818,613,864,100/1,823,558
6. Step 6: Final answer
   x = 9,771,344.74