Finding the Third Proportional to 2,218,200 and 3,312,516

Step by Step Solution

1. Step 1: Write the proportion equation
   2,218,200 : 3,312,516 = 3,312,516 : x
2. Step 2: Convert to fraction form
   2,218,200/3,312,516 = 3,312,516/x
3. Step 3: Cross multiply
   2,218,200x = 3,312,516 × 3,312,516
4. Step 4: Simplify right side
   2,218,200x = 10,972,762,250,256
5. Step 5: Solve for x
   x = 10,972,762,250,256/2,218,200
6. Step 6: Final answer
   x = 4,946,696.53