Finding the Third Proportional to 2,218,210 and 3,312,531

Step by Step Solution

1. Step 1: Write the proportion equation
   2,218,210 : 3,312,531 = 3,312,531 : x
2. Step 2: Convert to fraction form
   2,218,210/3,312,531 = 3,312,531/x
3. Step 3: Cross multiply
   2,218,210x = 3,312,531 × 3,312,531
4. Step 4: Simplify right side
   2,218,210x = 10,972,861,625,961
5. Step 5: Solve for x
   x = 10,972,861,625,961/2,218,210
6. Step 6: Final answer
   x = 4,946,719.03