Finding the Third Proportional to 1,207,078 and 2,513,222

Step by Step Solution

1. Step 1: Write the proportion equation
   1,207,078 : 2,513,222 = 2,513,222 : x
2. Step 2: Convert to fraction form
   1,207,078/2,513,222 = 2,513,222/x
3. Step 3: Cross multiply
   1,207,078x = 2,513,222 × 2,513,222
4. Step 4: Simplify right side
   1,207,078x = 6,316,284,821,284
5. Step 5: Solve for x
   x = 6,316,284,821,284/1,207,078
6. Step 6: Final answer
   x = 5,232,706.44